ZL50075GAG2

ZL50075 32 K Channel Digital Switch with High Jitter Tolerance, Rate Conversion per Group of 2 Streams (8, 16, 32 or 64 Mbps), and 64 Inputs and 64 Outputs Data Sheet Features • January 2006 32,768 channel x 32,768 channel non-blocking digital Time Division Multiplex (TDM) switch at 65.536 Mbps or 32.768 Mbps or using a combination of rates • 16,384 channel x 16,384 channel non-blocking digital TDM switch at 16.384 Mbps • 8,192 channel x 8,192 channel non-blocking digital TDM switch at 8.192 Mbps • • Ordering Information ZL50075GAC 324 Ball PBGA Trays ZL50075GAG2 324 Ball PBGA** Trays **Pb Free Tin/Silver/Copper -40°C to +85°C • Per-channel A-Law/µ-Law Translation High jitter tolerance with multiple input clock sources and frequencies • Per-channel constant or variable throughput delay for frame integrity and low latency applications Up to 64 serial TDM input streams, divided into 32 groups with 2 input streams per group • Per-stream Bit Error Rate (BER) test circuits • Per-channel high impedance output control • Up to 64 serial TDM output streams, divided into 32 groups with 2 output streams per group • Per-channel force high output control • Per-group input and output data rate conversion selection at 65.536 Mbps, 32.768 Mbps, 16.384 Mbps and 8.192 Mbps. Input and output data group rates can differ • Per-channel message mode • Control interface compatible with Intel and Motorola 16 bit non-multiplexed buses • Connection memory block programming • Per-group input bit delay for flexible sampling point selection • Supports ST-BUS and GCI-Bus standards for input and output timing • Per-group output fractional bit advancement • IEEE 1149.1 (JTAG) test port • Two sets of output timing signals for interfacing additional devices • 3.3 V I/O with 5V tolerant inputs; 1.8 V core voltage STiA0 STiB0 ODE Data Memory P/S Converter : : Connection Memory Input Timing SToA31 SToB31 Output Timing Test Access Port TRST Microprocessor Interface and Control Registers A18-0 DTA WAIT BERR D15-0 Timing IM DS CS R/W SIZ1-0 FPo1-0 CKo1-0 SToA0 SToB0 S/P Converter STiA31 STiB31 FPi0 CKi0 CK_SEL1-0 PWR TMS TDi TDo TCK : : VSS Figure 1 - ZL50075 Functional Block Diagram 1 Zarlink Semiconductor Inc. Zarlink, ZL and the Zarlink Semiconductor logo are trademarks of Zarlink Semiconductor Inc. Copyright 2004-2006, Zarlink Semiconductor Inc. All Rights Reserved. Output Group 31 Input Group 31 VDD_IO Output Group 0 Input Group 0 VDD_CORE ZL50075 Data Sheet Applications • Large Switching Platforms • Central Office Switches • Wireless Base Stations • Multi-service Access Platforms • Media Gateways Description The ZL50075 is a non-blocking Time Division Multiplex (TDM) switch with maximum 32,768 x 32,768 channels. The device can switch 64 kbps and Nx64 kbps TDM channels from any input stream to any output stream. With a number of enhanced features, the ZL50075 is designed for high capacity voice and data switching applications. The ZL50075 has 64 input and 64 output data streams which can operate at 8.192 Mbps, 16.384 Mbps, 32.768 Mbps or 65.536 Mbps. The large number of inputs and outputs maintains full 32 K x 32 K channel switching capacity at bit rates of 65 Mbps and 32 Mbps. Up to 32 input and output data streams may operate at 65 Mbps. Up to 64 input and output data streams may operate at 32 Mbps, 16 Mbps or 8 Mbps. The data rate can be independently set in groups of 2 input or output streams. In this way it is possible to provide rate conversion from input data channel to output data channel. The ZL50075 uses a master clock (CKi0) and frame pulse (FPi0) to define the TDM data stream frame boundary and timing. A high speed system clock is derived internally from CKi0 and FPi0. The input and output data streams can independently reference their timings to the input clock or to the internal system clock. The ZL50075 has a variety of user configurable options designed to provide flexibility when data streams are connected to multiple TDM components or circuits. These include: • Variable input bit delay and output advancement, to accommodate delays and frame offsets of streams connected through different data paths • Two timing outputs, CKo1 - 0 and FPo1 - 0, which can be configured independently to provide a variety of clock and frame pulse options • Support of both ST-BUS and GCI-Bus formats The ZL50075 also has a number of value added features for voice and data applications: • Per-channel variable delay mode for low latency applications and constant delay mode for frame integrity applications • Per-channel A-Law/µ-Law Conversions for both voice and data • 64 separate Pseudo-random Bit Sequence (PRBS) test circuits; one per stream. This provides an integrated Bit Error Rate (BER) test capability to facilitate data path integrity checking The ZL50075 has two major modes of operation: Connection Mode (normal) and Message Mode. In Connection Mode, data bytes received at the TDM inputs are switched to timeslots in the output data streams, with mapping controlled by the Connection Memories. Using Zarlink's Message Mode capability, microprocessor data can be broadcast to the output data streams on a per-channel basis. This feature is useful for transferring control and status information to external circuits or other TDM devices. A non-multiplexed microprocessor port provides access to the internal Data Memory, Connection Memory and Control Registers used to program ZL50075 options. The port is configurable to interface with either 16 bit Motorola or Intel-type microprocessors. The mandatory requirements of IEEE 1149.1 standard are supported via the dedicated Test Access Port. 2 Zarlink Semiconductor Inc. ZL50075 Data Sheet Table of Contents Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Change Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 1.0 Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 1.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 1.2 Switch Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 1.3 Stream Provisioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 1.4 Input and Output Rate Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 1.4.1 Per Group Rate Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 1.5 Rate Conversion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 2.0 Input Clock (CKi) and Input Frame Pulse (FPi) Timing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 3.0 Output Clock (CKo) and Output Frame Pulse (FPo) Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 4.0 Output Channel Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 5.0 Data Input Delay and Data Output Advancement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 5.1 Input Sampling Point Delay Programming. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 5.2 Fractional Bit Advancement on Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 6.0 Message Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 6.1 Data Memory Read . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 6.2 Connection Memory Block Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 7.0 Data Delay Through the Switching Paths . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 7.1 Constant Delay Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 7.2 Variable Delay Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 8.0 Per-Channel A-Law/m-Law Translation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 9.0 Bit Error Rate Tester . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 10.0 Microprocessor Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 10.1 Bus Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 10.1.1 Read Cycle. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 10.1.2 Write Cycle. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 11.0 Power-up and Initialization of the ZL50075 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 11.1 Device Reset and Initialization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 11.2 Power Supply Sequencing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 11.3 Initialization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 12.0 IEEE 1149.1 Test Access Port. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 12.1 Test Access Port (TAP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 12.2 Instruction Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 12.3 Test Data Register. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 12.4 Boundary Scan Description Language (BSDL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 13.0 Memory Map of ZL50075 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 14.0 Detailed Memory and Register Descriptions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 14.1 Connection Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 14.1.1 Connection Memory Bit Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 14.1.2 Connection Memory LSB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 14.2 Data Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 14.3 BER Control Memory and Error Counters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 14.3.1 Input BER Enable Control Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 14.3.2 BER Counters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 14.4 Group Control Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 14.5 Input Clock Control Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 14.6 Output Clock Control Register. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 3 Zarlink Semiconductor Inc. ZL50075 Data Sheet Table of Contents 14.7 Block Init Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 14.8 Block Init Enable Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 15.0 DC/AC Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 4 Zarlink Semiconductor Inc. ZL50075 Data Sheet List of Figures Figure 1 - ZL50075 Functional Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Figure 2 - 32 K x 32 K Channel Basic Switch Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Figure 3 - Input and Output Data Rate Conversion Example. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Figure 4 - Input Sampling Point Delay Programming. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Figure 5 - Output Bit Advancement Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Figure 6 - Data Throughput Delay for Constant Delay. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Figure 7 - Data Throughput Delay for Variable Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Figure 8 - Example PRBS Timeslot Insertion. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Figure 9 - Read Cycle Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Figure 10 - Write Cycle Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Figure 11 - Frame Pulse Input and Clock Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 Figure 12 - ST-Bus Frame Pulse and Clock Output Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 Figure 13 - GCI Frame Pulse and Clock Output Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 Figure 14 - Serial Data Timing to CKi . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 Figure 15 - Serial Data Timing to CKo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 Figure 16 - Microprocessor Bus Interface Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57 Figure 17 - Intel Mode Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57 Figure 18 - IEEE 1149.1 Test Port & PWR Reset Timing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58 5 Zarlink Semiconductor Inc. ZL50075 Data Sheet List of Tables Table 1 - Data Rate and Maximum Switch Size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Table 2 - TDM Stream Bit Rates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Table 3 - CKi0 and FPi0 Setting via CK_SEL1 - 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Table 4 - Input and Output Voice and Data Coding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Table 5 - Example of Address and Byte Significance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Table 6 - Byte Enable Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Table 7 - Memory Data Word Alignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Table 8 - Data Bus Word Alignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Table 9 - Byte Address Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Table 10 - Memory Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 Table 11 - Connection Memory Group Address Mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Table 12 - Connection Memory Stream Address Offset at Various Output Rates . . . . . . . . . . . . . . . . . . . . . . . . . 31 Table 13 - Connection Memory Timeslot Address Offset Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Table 14 - Connection Memory Bits (CMB) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 Table 15 - Connection Memory LSB Group Address Mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 Table 16 - Connection Memory LSB Stream Address Offset at Various Output Rates . . . . . . . . . . . . . . . . . . . . . 35 Table 17 - Data Memory Group Address Mapping. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 Table 18 - Data Memory Stream Address Offset at Various Output Rates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 Table 19 - BER Enable Control Memory Group Address Mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 Table 20 - BER Enable Control Memory Stream Address Offset at Various Output Rates . . . . . . . . . . . . . . . . . . 38 Table 21 - BER Counter Group and Stream Address Mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 Table 22 - Group Control Register Addressing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 Table 23 - Group Control Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 Table 24 - Input Clock Control Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 Table 25 - Output Clock Control Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 Table 26 - Block and Power-up Initialization Status Bits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 6 Zarlink Semiconductor Inc. ZL50075 Data Sheet Change Summary The following table captures the changes from the April 2005 issue. Page Item Change 25 10.1.1, “Read Cycle“ Clarified WAIT signal description in Read Cycle. 26 Figure 9 "Read Cycle Operation" Corrected WAIT signal tristate timing in Read Cycle. 26 10.1.2, “Write Cycle“ Clarified WAIT signal description in Write Cycle. 27 Figure 10 "Write Cycle Operation" Corrected WAIT signal tristate timing in Write Cycle. 38 Table 21 “BER Counter Group and Stream Address Mapping“ Corrected BER Counter Group and Stream Mapping Addresses. The following table captures the changes from the July 2004 issue. Page Item Change 10 "Pin Description" - CKo0-1 Added special requirement for using output clock at 65.536 MHz. 11 "Pin Description" - DTA, WAIT Added more detailed description to the DTA and WAIT pins. 48 “AC Electrical Characteristics1 - FPi0 and CKi0 Timing“ Added tFPIS, tFPIH (input frame pulse setup and hold) maximum values. 50 (1) “AC Electrical Characteristics1 FPO0-1 and CKO0-1 (65.536 MHz) Timing“ (2) “AC Electrical Characteristics1 FPO0-1 and CKO0-1 (32.768 MHz) Timing“ (3) “AC Electrical Characteristics1 FPO0-1 and CKO0-1 (16.384 MHz) Timing“ (4) “AC Electrical Characteristics1 FPO0-1 and CKO0-1 (8.192 MHz) Timing“ Added CKO0-1 and FPO0-1 setup and hold parameters for all different clock rates. 51 “AC Electrical Characteristics - Output Clock Jitter Generation“ Added this table to specify CKO0-1 jitter generation. 52 “AC Electrical Characteristics1 - Serial Data Timing2 to CKi“ (1) Values of parameters tSIPS, tSIPH, tSINS, tSINH, tSIPV, tSINV, tSIPZ and tSINZ are revised. (2) Separated parameter tCKD into tCKDP and tCKDN. 53 Figure 14 "Serial Data Timing to CKi" Added more detail to figure. 54 “AC Electrical Characteristics - Serial Data Timing1 to CKo2“ (1) Values of parameters tSOPS, tSOPH, tSONS, tSONH, tSOPV, tSONV, tSOPZ and tSONZ are revised. (2) Added CKO skew parameter, tCKOS, (clock source to internal APLL). 55 Figure 15 "Serial Data Timing to CKo" Added more detail and tCKOS to figure. 7 Zarlink Semiconductor Inc. ZL50075 Data Sheet Pin Diagram - ZL50075 19 mm x 19 mm 324 Ball PBGA (as viewed through top of package) A1 corner identified by metallized marking. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 A[11] A[8] A[4] A[2] A[0] R/W DS IC DTA A D[15] D[14] D[5] D[4] D[3] A[18] A[17] A[13] A[12] B STOA [1] IM D[11] D[10] D[8] D[7] D[6] D[1] A[15] A[10] A[5] A[1] NC CS C STIA [2] STIB [1] STIB STOA D[13] [0] [0] D[9] D[0] A[14] A[6] BERR WAIT STIB [31] D STOB CKO [2] [0] STIA STOB VDD_ D[12] [1] [0] CORE D[2] A[7] A[3] VDD_ IO TCK VDD_ TMS STOB STOB CORE [30] [31] E STIA [3] VSS VDD_ VDD_ CORE IO F STOB STIB STOA VDD_ VDD_ VSS [3] [3] [2] CORE IO G STOA STIB [3] [4] STIA [0] STIB STOB FPO [2] [1] [0] VSS A[9] VDD_ A[16] VDD_ CORE IO VSS VDD_ VDD_ VSS VDD_ VDD_ CORE IO CORE IO VSS VDD_ VDD_ VSS VDD_ VDD_ CORE IO CORE IO VSS SIZ[0] PWR STOA SIZ[1] [31] TDO TDI STIA TRST [31] STOA STIB [30] [30] NC STIA [30] VDD_ STOB STIB STOA STIA CORE [29] [29] [29] [29] STIA VDD_ VDD_ VDD_ VSS [4] IO CORE IO VSS VSS VSS VSS VSS VDD_ IO VSS VDD_ STIB STOB STOA IO [28] [28] [28] VSS STOA STOB VSS VDD_ VSS [4] [4] CORE VSS VSS VSS VSS VSS VDD_ VDD_ VSS STOA STOB STIA CORE IO [27] [27] [28] VSS VSS VSS VSS VSS VSS VSS STIA STOA VDD_ VDD_ VSS [7] [6] CORE IO VSS VSS VSS VSS VSS VDD_ IO H VSS J STIA STOA STIB STOB VDD_ VSS [5] [5] [5] [5] IO K ODE L STIB STOB [6] [6] VSS VDD_ VSS CORE VSS VSS VSS VSS VSS VDD_ VDD_ STIA STOA STOB CORE IO [24] [24] [24] M STIB STOA STOB VDD_ VDD_ VDD_ VSS [7] [7] [8] CORE IO IO VSS VSS VSS VSS VSS VDD_ VDD_ VDD_ STIA STOB STIB IO CORE CORE [23] [23] [26] N STOB STIB [7] [8] P IC STIA [6] STIA [9] IC STIA [8] STIB VDD_ VDD_ VSS [9] IO CORE STIA STOB VSS [10] [10] VSS VDD_ VDD_ VSS VDD_ VDD_ CORE IO CORE IO VSS VDD_ VDD_ VSS VDD_ VSS CORE IO CORE VSS VSS VDD_ STOA STOB VSS CORE [26] [26] VSS STIB [25] IC VDD_ VDD_ STOA STOB CORE IO [21] [21] STOA STOB STOA STIA VDD_ STOA STIA VDD_ STOA VDD_ STIB [8] [9] [10] [12] IO [13] [15] CORE [15] IO [17] IC VDD_ IO STIB VDD_ STIA [19] CORE [21] T STOA STIB [9] [10] IC STIA [18] STIA [19] U STIB STOB STIB [11] [11] [12] V STOB FPO [12] [1] CKO [1] STIA [14] STIB STOB STIA STOA [14] [15] [16] [16] STIB STOA STOB STIB [13] [14] [14] [16] CKI [0] NC IC FPI [0] STIA [17] IC NC IC Zarlink Semiconductor Inc. IC STIA STOA [20] [20] NC STOB [25] STIA [22] STIA [25] NC STIB [24] STOB CK_ STOB STOB STOB STIB STOA [17] SEL[0 [18] [19] [20] [21] [23] STOA CK_ [17] SEL[1] 8 STOA STIA [25] [27] VSS VDD_ STOA STOB STIA IO [22] [22] [26] R STIA STOA STOA STIA STOB STIB STOB [11] [11] [12] [13] [13] [15] [16] STIB [27] STIB [18] STOA STOA STIB [18] [19] [20] STIB [22] STIB [23] ZL50075 Data Sheet Pin Description Pin Name Description TDM Interface C3, D3, C1, E1, G3, J1, K2, K3, L4, P2, P3, T3, R4, T6, U5, R7, U8, T11, T13, T14, T15, R16, R17, M16, L15, R18, N18, K18, H18, F18, E18, C16, STiA0-31 Serial TDM Input Data ’A’ Streams (5 V Tolerant Input with Internal Pull-down) The data rate of these input streams can be selected in a group of 2 to be either 8.192 Mbps, 16.384 Mbps, 32.678 Mbps or 65.536 Mbps. Refer to Section 1.4 for rate programming options. The data streams can be selected to be either inverted or non-inverted, programmed by the Group Control Registers (Section 14.4). Unused inputs are pulled low by internal pull-down resistors and may be left unconnected. C4, C2, E2, F2, G2, J3, L1, M1, N2, N3, T2, U1, U3, V3, U6, T8, V6, R11, V13, R14, V16, U17, V17, V18, T18, K15, M18, J18, G16, F16, E17, C14 STiB0-31 Serial TDM Input Data ’B’ Streams (5 V Tolerant Input with Internal Pull-down) The data rate of these input streams can be selected in a group of 2 to be either 8.192 Mbps, 16.384 Mbps, or 32.678 Mbps. The stream is unused when its input group rate is 65.536 Mbps. Refer to Section 1.4 for rate programming options. The data streams can be selected to be either inverted or non-inverted, programmed by the Group Control Registers (Section 14.4). Unused inputs are pulled low by internal pull-down resistors and may be left unconnected. C5, B1, F3, G1, H3, J2, K4, M2, R1, T1, R3, T4, T5, R6, V4, R9, U9, V11, V14, V15, T16, P15, N16, U18, L16, K17, J15, H16, G18, F17, E16, B17 SToA0-31 Serial TDM Output Data ’A’ Streams (5 V Tolerant, 3.3 V Tri-state Slew-Rate Controlled Outputs) The data rate of these output streams can be selected in a group of 2 to be either 8.192 Mbps, 16.384 Mbps, 32.678 Mbps or 65.536 Mbps. Refer to Section 1.4 for rate programming options. The data streams can be selected to be either inverted or non-inverted, programmed by the Group Control Registers (Section 14.4). D4, E3, D1, F1, H4, J4, L2, N1, M3, R2, P4, U2, V1, T7, V5, U7, T9, U12, U14, U15, U16, P16, N17, M17, L17, P18, J16, H17, G17, F15, D17, D18 SToB0-31 Serial TDM Output Data ’B’ Streams (5 V Tolerant, 3.3 V Tri-state Slew-Rate Controlled Outputs) The data rate of these output streams can be selected in a group of 2 to be either 8.192 Mbps, 16.384 Mbps or 32.678 Mbps. The stream is unused when its output group rate is 65.536 Mbps. Refer to Section 1.4 for rate programming options. The data streams can be selected to be either inverted or non-inverted, programmed by the Group Control Registers (Section 14.4). Unused outputs are tristated and may be left unconnected. V7 CKi0 ST-BUS/GCI-Bus Clock Input (5 V Tolerant Schmitt-Triggered Input) This pin accepts an 8.192 MHz, 16.384 MHz, 32.678 MHz or 65.536 MHz clock. This clock must be provided for correct operation of the ZL50075. The frequency of the CKi0 input is selected by the CK_SEL1-0 inputs. The active clock edge may be either rising or falling, programmed by the Input Clock Control Register (Section 14.5). 9 Zarlink Semiconductor Inc. ZL50075 Data Sheet Pin Description (continued) Pin Name Description T10 FPi0 ST-BUS/GCI-Bus Frame Pulse Input (5 V Tolerant Input) This pin accepts the 8 kHz frame pulse which marks the frame boundary of the TDM data streams. The pulse width is nominally one CKi0 clock period (assuming ST-BUS mode) selected by the CK_SEL1-0 inputs. The active state of the frame pulse may be either high or low, programmed by the Input Clock Control Register (Section 14.5). D2, U4 CKo0-1 ST-BUS/GCI-Bus Clock Outputs (3.3 V Outputs with Slew-Rate Control) These clock outputs can be programmed to generate 8.192 MHz, 16.384 MHz, 32.678 MHz or 65.536 MHz TDM clock outputs. The active edge can be programmed to be either rising or falling. The source of the clock outputs can be derived from either the CKi0 inputs or the internal system clock. The frequency, active edge and source of each clock output can be programmed independently by the Output Clock Control Register (Section 14.6). For 65.536 MHz output clock, the total loading on the output should not be larger than 10pF. E4, V2 FPo0-1 ST-BUS/GCI-Bus Frame Pulse Outputs (3.3 V Outputs with Slew-Rate Control) These 8 kHz output pulses mark the frame boundary of the TDM data streams. The pulse width is nominally one clock period of the corresponding CKo output. The active state of each frame pulse may be either high or low, independently programmed by the Output Clock Control Register (Section 14.6). U13, V12 K1 CK_SEL0-1 TDM Master Clock Input Select Inputs used to select the frequency and frame alignment of CKi0 and FPi0: CK_SEL1 = 0, CK_SEL0 = 0, 8.192 MHz CK_SEL1 = 0, CK_SEL0 = 1, 16.384 MHz CK_SEL1 = 1, CK_SEL0 = 0, 32.768 MHz CK_SEL1 = 1, CK_SEL0 = 1, 65.536 MHz ODE Output Drive Enable (5 V Tolerant Input with Internal Pull-up) This is the asynchronous output enable control for the output streams. When it is high, the streams are enabled. When it is low, the output streams are tristated. Microprocessor Port and Reset A1, A2, C6, D6, B3, B4, C7, B5, B6, B7, A3, A4, A5, D7, B8, C8 D15-0 Microprocessor Port Data Bus (5 V Tolerant Bi-directional with Slew-Rate Output Control) 16 bit bi-directional data bus. Used for microprocessor access to internal memories and registers. A6, A7, D9, B9, C9, A8, A9, A10, B10, C10, A11, D11, C11, B11, A12, D12, A13, B12, A14 A18-0 Microprocessor Port Address Bus (5 V Tolerant Inputs) 19 bit address bus for the internal memories and registers. Note A0 is not used and should be connected to a defined logic level. 10 Zarlink Semiconductor Inc. ZL50075 Data Sheet Pin Description (continued) Pin Name Description B14 CS Chip Select Input (5 V Tolerant Input) Active low input used with DS to enable read and write access to the ZL50075. A16 DS Data Strobe Input (5 V Tolerant Input) Active low input used with CS to enable read and write access to the ZL50075. A15 R/W Read/Write Input (5 V Tolerant Input) Input signal that controls the type of microprocessor access: 0 - Microprocessor write to the ZL50075 1 - Microprocessor read from the ZL50075 A18 DTA Data Transfer Acknowledge (5 V Tolerant, 3.3 V Tri-state Output with Slew-Rate) Active low output which indicates that a data bus transfer is complete. An external pull-up resistor is required to hold this pin HIGH when output is high-impedance. C12 BERR Transfer Bus Error Output with Slew Rate Control (5 V Tolerant, 3.3 V Tri-state Outputs with Slew-Rate Control) This pin goes low whenever the microprocessor attempts to access an invalid memory space inside the device. In Motorola bus mode, if this bus error signal is activated, the data transfer acknowledge signal, DTA, will not be generated. In Intel bus mode, the generation of the DTA is not affected by this BERR signal. An external pull-up resistor is required to hold a HIGH level when output is high-impedance. C13 WAIT Data Transfer Wait Output (5 V Tolerant, 3.3 V Tri-state Output with Slew Rate) Active low wait signal output. An external pull-up resistor is required to hold a HIGH level when output is high-impedance. B15, B18 SIZ0-1 Data Transfer Size/Upper and Lower Data Strobe Inputs (5 V Tolerant Inputs) Motorola mode: SIZ0 - LDS, SIZ1 - UDS. Active low upper and lower data strobes, UDS and LDS, indicate whether the upper byte, D15-8, and/or lower byte, D7-0, is being transferred. Intel mode: SIZ0 - BE0, SIZ1 - BE1. Active low Intel type bus-enable signal BE1 and BE0 signals B2 IM B16 PWR Microprocessor Port Bus Mode Select (5 V Tolerant Input) Control input: 0 = Motorola mode 1 = Intel mode Device Reset (5 V Tolerant Schmitt-Triggered Input) Asynchronous reset input used to initialize the ZL50075. 0 = Reset 1 = Normal See Section 11.0, Power-up and Initialization of the ZL50075 for detailed description of Reset state. 11 Zarlink Semiconductor Inc. ZL50075 Data Sheet Pin Description (continued) Pin Name Description IEEE 1149.1 (JTAG) Test Access Port (TAP) E15 TDI Test Data (5 V Tolerant Input with Internal Pull-up) Serial test data input. When not used, this input may be left unconnected. C15 TDO Test Data (3.3 V Output) Serial test data output. D14 TCK Test Clock (5 V Tolerant Schmitt-Triggered Input with Internal Pull-up) Clock input used by TAP Controller. When not used, this input may be left unconnected. D16 TMS Test Reset (5 V Tolerant Schmitt-Triggered Input with Internal Pull-up) Input which controls the state transitions of the TAP Controller. When not used, this pin is pulled high by an internal pull-up resistor and may be left unconnected. C17 TRST Test Mode Select (5 V Tolerant Input with Internal Pull-up) Asynchronously initializes the JTAG TAP controller by putting it in the Test-Logic-Reset state. This pin should be pulsed low during power-up to ensure that the device is in the normal functional mode. When JTAG is not being used, this pin should be pulled low during normal operation. Unused U10, V9, V10, R12, L18, A17, L3, P1, T12, K16 IC Internal Connections In normal mode these pins MUST be connected low. B13, C18, P17, T17, U11, V8 NC No Connection In normal mode these pins MUST be left unconnected. Power E5, E6, E9, E12, F6, F7, F10, F13, G7, G8, G9, G10, G11, G12, G14, H1, H2, H5, H7, H8, H9, H10, H11, H12, H15, J6, J7, J8, J9, J10, J11, J12, J13, J17, K7, K8, K9, K10, K11, K12, K14, L5, L7, L8, L9, L10, L11, L12, M7, M8, M9, M10, M11, M12, N6, N7, N10, N13, N14, P5, P6, P9, P11, P12 VSS D5, D8, D15, E7, E10, E13, F4, F8, F11, F14, G5, H6, H13, J14, K5, L13, L6, M4, M14, M15, N5, N8, N11, P7, P10, P13, R8, R15 VDD_CORE Ground Power Supply for the Core Logic: +1.8 V 12 Zarlink Semiconductor Inc. ZL50075 Data Sheet Pin Description (continued) Pin Name D10, D13, E8, E11, E14, F5, F9, F12, G4, G6, G13, G15, H14, J5, K6, K13, L14, M5, M6, M13, N4, N9, N12, N15, P8, P14, R5, R10, R13 VDD_IO 1.0 Functional Description 1.1 Overview Description Power Supply for the I/O: +3.3 V The device has 64 ST-BUS/GCI-Bus inputs (STiA0 - 31 and STiB0 - 31) and 64 ST-BUS/GCI-Bus outputs (SToA0 31 and SToB0 - 31). It is a non-blocking digital switch with 32,768 64 kbps channels and is capable of performing rate conversion between groups of 2 inputs and 2 outputs. The inputs accept serial input data streams with data rates of 8.192 Mbps, 16.384 Mbps, 32.768 Mbps or 65.536 Mbps. There are 32 input groups with each group consisting of 2 streams (‘A’ and ‘B’). Each group can be set to any of the data rates. The outputs deliver serial data streams with data rates of 8.192 Mbps, 16.384 Mbps, 32.768 Mbps or 65.536 Mbps. There are 32 output groups with each group consisting of 2 streams (‘A’ and ‘B’). Each group can be set to any of the data rates. By using Zarlink’s message mode capability, the microprocessor can store data in the connection memory which can be broadcast to the output streams on a per-channel basis. This feature is useful for transferring control and status information for external circuits or other ST-BUS/GCI-Bus devices. The ZL50075 uses the ST-BUS/GCI-Bus master input frame pulse (FPi0) and the ST-BUS/GCI-Bus master input clock (CKi0) to define the input frame boundary and timing for sampling the ST-BUS/GCI-Bus input streams with various data rates (8.192 Mbps, 16.384 Mbps, 32.768 Mbps or 65.536 Mbps). The rate of the input clock is defined by setting the CK_SEL1 - 0 pins. A selectable Motorola or Intel compatible non-multiplexed microprocessor port allows users to program the device to operate in various modes under different switching configurations. Users can use the microprocessor port to perform internal register and memory read and write operations. The microprocessor port has 16 bit data bus and 17 bit address bus (in A18-0, A0 is not used, and A1 is used for word alignment). There are seven control signals (CS, DS, R/W, DTA, WAIT, BERR and IM). The device supports the mandatory requirements for the IEEE 1149.1 (JTAG) standard via the test port. 1.2 Switch Operation The ZL50075 switches 64 kbps and Nx64 kbps data and voice channels from the TDM input streams, to timeslots in the TDM output streams. The device is non-blocking; all 32 K input channels can be switched through to the outputs. Any input channel can be switched to any available output channel. 13 Zarlink Semiconductor Inc. ZL50075 Input Group 0 STiA0 STiB0 Data Sheet SToA0 SToB0 Output Group 0 32 K x 32 K TDM INPUT 64 Streams TDM OUTPUT 64 Streams SToA31 SToB31 STiA31 Input Group 31 STiB31 Output Group 31 ZL50075 Figure 2 - 32 K x 32 K Channel Basic Switch Configuration The maximum channel switching capacity is determined by the number of streams and their rate of operation, as shown in Table 1. TDM Group Data Rate Maximum Number of Input TDM Data Streams Maximum Number of Output TDM Data Streams Number of 64 kbps Channels per Stream Maximum Switch Capacity† (streams x channels = total) 65.536 Mbps 32 32 1024 32 x 1024 = 32,768 32.768 Mbps 64 64 512 64 x 512 = 32,768 16.384 Mbps 64 64 256 64 x 256 = 16,384‡ 8.192 Mbps 64 64 128 64 x 128 = 8,192‡ Table 1 - Data Rate and Maximum Switch Size † The maximum capacity shown is when all streams are at the same rate, and none are operating at 16.384 Mbps or 8.192 Mbps. ‡ Switch capacity is limited to less than 32 K channels, only when streams are provisioned at 16 Mbps or 8 Mbps. The maximum switch capacity in this case is given by 32,768 - (M x 256) - (N x 384), where M is the number of 16 Mbps input or output streams, and N is the number of 8 Mbps input or output streams. 1.3 Stream Provisioning The ZL50075 is a large switch with a comprehensive list of user configurable, ’per-group’ programmable features. In order to facilitate ease of use, the ZL50075 offers a simple programming model. Streams are grouped in sets of two, with each group sharing the same configured characteristics. In this way it is possible to reduce programming complexity, while still maintaining flexible ’per-stream’ configuration options: • Input and output rate selection, see Section 1.4 • Input stream clock source selection, see Section 2.0 • Output stream clock source selection, see Section 2.0 • Input stream sampling point selection, see Section 5.1 • Output stream fractional bit advance, see Section 5.2 • Input and output stream inversion control, see Section 14.4 The streams are grouped, one from the TDM ’A’ streams, combined with the corresponding ’B’ streams. For example, input stream group #12 is STiA12 and STiB12, and output stream group #4 is SToA4 and SToB4. There are 32 input and 32 output groups. Depending on the data rate set for the group there will be between 1 and 2 streams activated. If the data rate is set for 65.536 Mbps, the ‘A’ stream will be activated and the ‘B’ stream will not be activated. If the data rate is set for 32.768 Mbps, 16.384 Mbps or 8.192 Mbps, the ‘A’ and ‘B’ streams will be activated. The maximum channel capacity of a group is 1024 channels when operating at 65 Mbps or 32 Mbps. The 14 Zarlink Semiconductor Inc. ZL50075 Data Sheet switch capacity is reduced to 512 channels when operating at 16 Mbps and to 256 channels when operating at 8 Mbps. 1.4 Input and Output Rate Selection Table 1 shows the maximum number of streams available at different bit rates. The ZL50075 deactivates unused streams when operating at the higher bit rates as shown in Table 2. Input or Output Group n (n = 0 - 31) 65 Mbps 32 Mbps 16 Mbps 8 Mbps STiAn / SToAn Active Active Active Active STiBn / SToBn Not Active Active Active Active Table 2 - TDM Stream Bit Rates For 65 Mbps operation, only those inputs and outputs in the TDM ’A’ streams are active. For 32 Mbps, 16 Mbps and 8 Mbps operation, the inputs and outputs in the TDM ’A’ and ’B’ streams are active. Note that if the internal system clock is not used as the clock source, there are limitations on the maximum data rate. See Section 2.0 for more details. 1.4.1 Per Group Rate Selection See Section 14.4, Group Control Registers, for programming details. The data rates are set with the Input Stream Bit Rate (bits 3 - 2) and the Output Stream Bit Rate (bits 19 - 18) in the Group Control Registers 0 - 31 (GCR0 - 31). For the ZL50075, the bit rates of the inputs and outputs are programmed independently, in groups of 2 streams. Depending on the rate programmed, the active streams in the group will be as indicated in Table 2. For example: • if input stream group #1 is programmed for 65 Mbps: STiA1 is active; STiB1 is not active • if output stream group #15 is programmed for 32 Mbps, 16 Mbps or 8 Mbps: SToA15 and SToB15 are active 1.5 Rate Conversion The ZL50075 supports rate conversion from any input stream rate to any output stream rate. An example of ZL50075 rate conversion is given in Figure 3. The output stream rates do not have to follow the input stream rates. In this example, on the input side of the switch you can have 24 streams operating at 65.536 Mbps (24,576 channels - 24 groups with 1 stream in each group), 8 streams operating at 32.768 Mbps (4096 channels - 4 groups with 2 streams in each group) and 8 streams operating at 16.384 Mbps (2048 channels - 4 groups with 2 streams in each group) with no streams operating at 8.192 Mbps. This results in an input capacity of 30,720 input channels. This is less than the full capacity of the device as some groups are operating at less than 32 Mbps. As the output streams do not have to follow the input streams, they can be configured so that 15 streams operate at 65.536 Mbps (15,360 channels - 15 groups with 1 stream in each group), 28 streams operate at 32.768 Mbps (14,336 channels - 14 groups with 2 streams in each group), 2 streams operate at 16.384 Mbps (512 channels - 1 group with 2 streams in the group) and 4 streams operate at 8.192 Mbps (512 channels - 2 groups with 2 streams in each group). This results in an output capacity of 30,720 output channels. This is less than the full capacity of the device as some groups are operating at less than 32 Mbps. 15 Zarlink Semiconductor Inc. ZL50075 Input Groups 0 - 23 at 65 Mbps Input Groups 24 - 27 at 32 Mbps Data Sheet STiA0 - 23 at 65 Mbps STiB0 - 23 Not Active SToA0 - 14 at 65 Mbps SToB0 - 14 Not Active SToA15 - 28 at 32 Mbps Output Groups SToB15 - 28 at 32 Mbps 15 - 28 at 32 Mbps STiA24 - 27 at 32 Mbps STiB24 - 27 at 32 Mbps SToA29 at 16 Mbps SToB29 at 16 Mbps Input Groups 28 - 31 at 16 Mbps Output Groups 0 - 14 at 65 Mbps STiA28 - 31 at 16 Mbps STiB28 - 31 at 16 Mbps SToA30 - 31 at 8 Mbps SToB30 - 31 at 8 Mbps Output Group 29 at 16 Mbps Output Groups 30 - 31 at 8 Mbps Example: Input Groups 0 - 23 at 65 Mbps; Output Groups 0 - 14 at 65 Mbps Input Groups 24 - 27 at 32 Mbps; Output Groups 15 - 28 at 32 Mbps Input Groups 28 - 31 at 16 Mbps; Output Group 29 at 16 Mbps Output Groups 30 - 31 at 8 Mbps Figure 3 - Input and Output Data Rate Conversion Example 2.0 Input Clock (CKi) and Input Frame Pulse (FPi) Timing The input timing for the ZL50075 can be set for one of four different frequencies. They can also be set for ST-BUS or GCI-Bus mode with positive or negative input. The CKi0 and FPi0 input timing must be provided in order for the device to be used. CKi0 is used to generate the internal clock. This clock is used for all the internal logic and can be used as one of the clocks that defines the timing for the input and output data. The input stream clock source is selected by the ISSRC1 - 0 (bits 1 - 0) in the Group Control Register. The output stream clock source is selected by the OSSRC1 - 0 (bits 17 - 16) in the Group Control Register. The CKi0 and FPi0 input frequency is set via the CK_SEL1 - 0 pins as shown in Table 3. By default the CKi0 and FPi0 pins accept ST-BUS, negative input timing. The input frame pulse format (ST-BUS/GCI-Bus), frame pulse polarity, and clock polarity can be programmed by the GCISEL0 (bit 2), FPIPOL0 (bit 1), and CKIPSL0 (bit 0) in the Input Clock Control Register (ICCR), as described in Section 14.5. CK_SEL1 CK_SEL0 Input CKi0 and FPi0 0 0 8.192 MHz 0 1 16.384 MHz 1 0 32.768 MHz 1 1 65.536 MHz Table 3 - CKi0 and FPi0 Setting via CK_SEL1 - 0 The input streams, output streams, and output clocks / frame pulses can use either the internal system clock or the input CKi0 and FPi0 as clock sources. The input streams’ clock sources are controlled by the ISSRC1-0 (bits 1 - 0) in the Group Control Registers (GCR). The output streams’ clock sources are controlled by the OSSRC1-0 (bits 17 - 16) in the Group Control Registers (GCR). The output clocks’ / frame pulses’ clock sources are controlled by the CKO1SRC1-0 (bits 8-7) and CKO0SRC1-0 (bits 1-0) in the Output Clock Control Register (OCCR). Using the input CKi0 and FPi0 as clock source provides a direct interface to jittery peripherals, while using the internal system clock as clock source provides the best data rate and clock rate flexibility. 16 Zarlink Semiconductor Inc. ZL50075 Data Sheet When the internal system clock is not used as the clock source, there are limitations to the data rate and the output clock rate. For all the input and output stream groups that do not use the internal system clock as their clock source, the data rate is limited to be no higher than the selected clock source’s rate (e.g., if CKi0 runs at 16.384 MHz and it is selected as the clock source for input stream group 3, then the maximum data rate of STiA3 and STiB3 is 16.384 Mbps). Similarly, for all the output clocks that do not use the internal system clock as their clock source, the clock rate is limited to be no higher than the selected clock source’s rate (e.g., if CKi0 runs at 32.768 MHz and it is selected as the clock source for output clock CKo0, then the maximum clock rate of CKo0 is 32.768 MHz). 3.0 Output Clock (CKo) and Output Frame Pulse (FPo) Timing There are two output timing pairs, CKo1 - 0 and FPo1 - 0. By default these signals generate ST-BUS, negative timing, and use the internal system clock as reference clock source. Their default clock rates are 65.536 MHz for CKo0 and 32.768 MHz for CKo1. Their properties can also be individually programmed in the Output Clock Control Register (OCCR) to control the frame pulse format (ST-BUS/GCI-Bus), frame pulse polarity, clock polarity, clock rate (8.192 MHz, 16.384 MHz, 32.768 MHz or 65.536 MHz), and reference clock source. Refer to Section 14.6 for programming details. Note that the reference clock source can be set to either the internal system clock or the input CKi0 and FPi0 signals. If the input CKi0 and FPi0 is selected as the reference source, the output clock cannot be programmed to generate a higher clock frequency than the reference source. As each output timing pair has its own bit settings, they can be set to provide different output timings. For 65.536 MHz output clock, the total loading on the output should not be larger than 10pF. 4.0 Output Channel Control To be able to interface with external buffers, the output signals can be set to enter a high impedance or drive high state on a per-channel basis. The Per Channel Function (bits 31 - 29) in the Connection Memory Bits can be set to 001 to drive the channel output high, or to 000, 110 or 111 to set the channel into a high impedance state. 5.0 Data Input Delay and Data Output Advancement The Group Control Registers (GCR) are used to adjust the input delay and output advancement for each input and output data groups. Each group is independently programmed. 5.1 Input Sampling Point Delay Programming The input sampling point delay programming feature provides users with the flexibility of handling different wire delays when incoming traffic is from different sources. By default, all input streams have zero delay, such that bit 7 is the first bit that appears after the input frame boundary (assuming ST-BUS formatting). The nominal input sampling point with zero delay is at the 3/4 bit time. The input delay is enabled by the Input Sample Point Delay (bit 8 - 4) in the Group Control Registers 0 - 31 (GCR0 - 31) as described in Section 14.4 on page 39. The input sampling point delay can range from 0 to 7 3/4 bit delay with a 1/4 bit resolution on a per group basis. 17 Zarlink Semiconductor Inc. ZL50075 Nominal Channel n Boundary STi[n] 0 7 6 5 Data Sheet Nominal Channel n+1 Boundary 4 3 2 1 0 00000 (Default) 00001 00010 00011 00100 00101 00110 00111 01000 01001 01010 01011 01100 01101 01110 01111 7 6 11111 11110 11101 11100 11011 11010 11001 11000 10111 10110 10101 10100 10011 10010 10001 10000 Example: With a setting of 01111 the sampling point for bit 7 will be 3 1/2 bits Figure 4 - Input Sampling Point Delay Programming There are limitations when the ZL50075 is programmed to use CKi0 as the input stream clock source as opposed to the internal clock: • The granularity of the delay becomes 1/2 the selected reference clock period, or 1/4 bit, whichever is longer • If the selected reference clock frequency is the same as the stream bit rate, the granularity of the delay is 1/2 bit. In this case, the least significant bit of the ISPD register is not used; the remaining 4 bits select the total delay in 1/2 bit increments, to a maximum of 7 1/2 bits. Also, the 0 bit delay reference point changes from the 3/4 bit position to the 1/2 bit position. 5.2 Fractional Bit Advancement on Output See Section 14.4, Group Control Registers, for programming details. This feature is used to advance the output data with respect to the output frame boundary. Each group has its own bit advancement value which can be programmed in the Group Control Registers 0 - 31 (GCR0 - 31). By default all output streams have zero bit advancement such that bit 7 is the first bit that appears after the output frame boundary (assuming ST-BUS formatting). The output advancement is enabled by the Output Stream Bit Advancement (bits 21 - 20) of the Group Control Registers 0 - 31 (GCR0 - 31), as described in Section 14.4. The output delay can vary from 0 to 22.8 ns with a 7.6 ns increment. The exception to this is output streams programmed at 65 Mbps, in which case the increment is 3.8 ns with a total advancement of 11.4 ns. 18 Zarlink Semiconductor Inc. ZL50075 Data Sheet Nominal 8 MHz Clock Nominal 16 MHz Clock Nominal 32/65 MHz Clock Nominal Output Bit Timing OSBA = 00 7.6ns (~3.8 ns at 65 Mbps) Level 1 Advance OSBA = 01 15.2ns (~7.6 ns at 65 Mbps) Level 2 Advance OSBA = 10 22.8ns (~11.4 ns at 65 Mbps) Level 3 Advance OSBA = 11 Figure 5 - Output Bit Advancement Timing This programming feature is provided to assist in designs where per stream routing delays are significant and different. The OSBA bits in the Group Control Registers are used to set the bit-advancement for each of the corresponding serial output stream groups. Figure 5 illustrates the effect of the OSBA settings on the output timing. There are limitations when the ZL50075 is programmed to use CKi0 as the output stream clock source: • If the selected reference clock frequency is 65 MHz or 32 MHz, the granularity of the advancement is reduced to 1/2 the clock period • If the selected reference clock frequency is 16 MHz or 8 MHz, bit advancement is not available and the output streams are driven at the nominal times 6.0 Message Mode In Message Mode (MSG), microprocessor data can be broadcast to the output data streams on a per-channel basis. This feature is useful for transferring control and status information to external circuits or other TDM devices. For a given output channel, when the corresponding Per Channel Function (bits 31 - 29) in the Connection Memory are set to Message Mode (010), the Connection Memory’s lowest data byte (bits 7 - 0) is output in the timeslot. Refer to Section 14.1.1, Connection Memory Bit Functions, for programming details 19 Zarlink Semiconductor Inc. ZL50075 Data Sheet To increase programming bandwidth, the ZL50075 has separate addressable 32 bit memory locations, called Connection Memory Least Significant Bytes (LSB), which provide direct access to the Connection Memories’ Lowest data bytes (bits 7 - 0). Up to four consecutive message mode channels can be set with one Connection Memory LSB access. Refer to Section 14.1.2, Connection Memory LSB, for programming details. 6.1 Data Memory Read All TDM input channels can be read via the microprocessor port. This feature is useful for receiving control and status information from external circuits or other TDM devices. Each 32 bit Data Memory access enables up to four consecutive input channels to be monitored. The Data Memory field is read only; any attempt to write to this address range will result in a bus error condition signalled back to the host processor. Refer to Section 14.2, Data Memory, for programming details. The latency of data reads is up to 3 frames, depending on when the input timeslots are sampled. 6.2 Connection Memory Block Programming See Section 14.7, Block Init Register, and Section 14.8, Block Init Enable Register, for programming details. This feature allows for fast initialization of the connection memory after power up. When the block programming mode is enabled, the contents of Block Init Register are written to all Connection Memory Bits. This operation completes in one 125 µs frame. During Connection Memory initialization, all TDM output streams are set to high impedance. 7.0 Data Delay Through the Switching Paths See Section 14.1.1, Connection Memory Bit Functions, for programming details. The switching of information from the input serial streams to the output serial streams results in a throughput delay. The device can be programmed to perform timeslot interchange functions with different throughput delay capabilities on a per-channel basis. For voice applications, select variable throughput delay to ensure minimum delay between input and output data. In wideband data application, select constant delay to maintain the frame integrity of the information through the switch. The delay through the device varies according to the type of throughput delay selected by programming the Per Channel Function (bits 31 - 29) in the Connection Memories. When these bits are set to 011, the channel is in variable delay mode. When they are set to 100, the channel is in constant delay mode. 7.1 Constant Delay Mode In this mode the frame integrity is maintained in all switching configurations. The delay though the switch is 2 frames - Input Channel + Output Channel. This can result in a minimum delay of 1 frame + 1 channel if the last channel of a stream is switched to the first channel of a stream. The maximum delay is 1 channel short of 3 frames delay. This occurs when the first channel of a stream is switched to the last channel of a stream. The data throughput delay is expressed as a function of ST-BUS/GCI-Bus frames, input channel number (n) and output channel number (m). The data throughput delay (T) is: T = 2 frames + (n - m) 20 Zarlink Semiconductor Inc. ZL50075 Data Sheet N-2 N-1 CH0 CH1 CH2 CH3 N-2 N-1 CH0 CH1 CH2 CH3 N-2 N-1 CH0 CH1 CH2 CH3 N-2 N-1 CH0 CH1 CH2 CH3 N-2 N-1 CH0 CH1 CH2 CH3 N-2 N-1 CH0 CH1 CH2 CH3 N-2 N-1 CH0 CH1 CH2 CH3 N-2 N-1 CH0 CH1 CH2 CH3 N-2 N-1 CH0 CH1 CH2 CH3 N-2 N-1 CH0 CH1 CH2 CH3 N-2 N-1 CH0 CH1 CH2 CH3 N-2 N-1 CH0 CH1 CH2 CH3 Figure 6 - Data Throughput Delay for Constant Delay 7.2 Variable Delay Mode Variable delay mode causes the output channel to be transmitted as soon as possible. This is a useful mode for voice applications where the minimum throughput delay is more important than data integrity. The delay through the switch is minimum 3 channels and maximum 1 frame + 2 channels. N-2 N-1 CH0 CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8 CH9 N-2 N-1 CH0 CH1 CH2 CH3 N-2 N-1 CH0 CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8 CH9 N-2 N-1 CH0 CH1 CH2 CH3 N-2 N-1 CH0 CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8 CH9 N-2 N-1 CH0 CH1 CH2 CH3 N-2 N-1 CH0 CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8 CH9 N-2 N-1 CH0 CH1 CH2 CH3 Figure 7 - Data Throughput Delay for Variable Delay 21 Zarlink Semiconductor Inc. ZL50075 8.0 Data Sheet Per-Channel A-Law/µ-Law Translation The ZL50075 provides per channel code translation to be used to adapt pulse code modulation (PCM) voice or data traffic between networks which use different encoding laws. Code translation is available in both Connection Mode and Message Mode. This feature is controlled by the Connection Memories. The V/D (bit 28) defines if the traffic in the channel is voice or data. The ICL1 - 0 (bits 27 - 26) define the input coding law and the OCL1 - 0 (bits 25 - 24) define the output coding law. The different coding options are shown in Table 4: Data Coding (V/D bit = 1) Input Coding (ICL1- 0) Output Coding (OCL1 - 0) Voice Coding (V/D bit = 0) 00 00 ITU-T G.711 A-Law No Code 01 01 ITU-T G.711 µ-Law Alternate Bit Inversion (ABI) 10 10 A-Law without Alternate Bit Inversion (ABI) Inverted Alternate Bit Inversion (ABI) 11 11 µ-Law without Magnitude Inversion (MI) All Bits Inverted Table 4 - Input and Output Voice and Data Coding For voice coding options, the ITU-T G.711 A-Law and ITU-T G.711 µ-Law are the standard rules for encoding. The A-Law without Alternate Bit Inversion (ABI) is an alternative code that does not invert the even bits (6, 4, 2, 0). The µ-Law without Magnitude Inversion (MI) is an alternative code that does not perform Inversion of magnitude bits (6, 5, 4, 3, 2, 1, 0). When performing data code options, No Code does not invert the bits. The Alternate Bit Inversion (ABI) option inverts the even bits (6, 4, 2, 0) while the Inverted Alternate Bit Inversion (ABI) inverts the odd bits (7, 5, 3, 1). When All Bits Inverted is selected, all of the bits (7, 6, 5, 4, 3, 2, 1, 0) are inverted. The input channel and output channel encoding law are configured independently. If the output channel coding is set to be different from the input channel, the ZL50075 performs translation between the two standards. If the input and output encoding laws are set to the same standard, no translation occurs. 9.0 Bit Error Rate Tester The ZL50075 has one Bit Error Rate (BER) transmitter and one BER receiver for each pair of input and output streams, resulting in 64 transmitters connected to the output streams and 64 receivers associated with the input streams. Each transmitter can generate a BER sequence with a pattern of 215-1 Pseudo-Random Code (ITU O.151). Each transmitter can start at any location on the stream and will last for a minimum of 1 channel to a maximum of 1 frame time (125 µs). The BER transmitters are enabled by programming the Per Channel Function (bit 31 - 29) to 101 (PRBS Generator mode) in the Connection Memories. Multiple Connection Memory locations can be programmed for BER tests. These locations are not required to be consecutive. However, when read back, the BER locations must be received in the same order that they were transmitted. If the BER locations are not received in the same order, the BER test will produce errors. The PRBS bit pattern is sequentially loaded into the output timeslots. An example is shown in Figure 8. 22 Zarlink Semiconductor Inc. ZL50075 Data Sheet ‘ Example segment of serial bit pattern from Stream N PRBS Generator ..010111001101101111001010110110001011111011010011100001101... Stream N with Channels a, b and c enabled for PRBS insertion a b c a Frame m b c Frame m+1 Figure 8 - Example PRBS Timeslot Insertion Each PRBS detector can be configured to monitor for bit errors in one or more timeslots. The selection of timeslots is configured by the Input BER Enable Control Memory (IBERECM). See Section 14.3.1 for programming details, Each detector has an associated 16 bit error counter accessible via the microprocessor interface, as described in Section 14.3.2, BER Counters. The value of the counter represents the total number of errors detected on the corresponding input stream. Bit errors are accumulated until the counter is either reset (by writing to the counter or by resetting the device), or the counter reaches its maximum value, 65,535 (decimal). If more than 65,535 errors are detected, the counter will hold at the maximum value until reset. Any number of timeslots may be configured for bit error rate testing; however the user must ensure the following for correct operation of the BER test function: 1. The number of timeslots enabled for PRBS detection on the input stream must equal the number of timeslots enabled for PRBS generation on the source output stream 2. The arrival order of timeslots at the PRBS detector must be the same as the order in which timeslots were transmitted by the PRBS generator. For example, in Figure 8 above, the timeslot order a, b, c must be maintained through the external path from source TDM output stream to destination TDM input stream. 10.0 Microprocessor Port The ZL50075 has a generic 16-bit microprocessor port that provides access to the 32-bit internal Data Memory (read access only), Connection Memory and Control Registers. D15 on the bus maps to Bit 31 and Bit 15 of the internal 32 bit memory or register, D14 maps to Bit 30 and Bit 14, etc. The IM pin is used to select between Motorola bus control and Intel bus control. If the IM input is low, then a Motorola control is selected. If the IM bit is high, then an Intel control is selected. Regardless of which bus configuration is selected, the bus cycle termination signals WAIT & DTA are both provided. The Data Memory, Connection Memory and Control Registers are assigned 32 bit fields in the ZL50075 memory space. Each 32 bit memory or register location spans 4 consecutive addresses. Example: • The 32 bit Group Control Register for TDM Group 0 is located at address range 40200 - 40203 Hex The Least Significant address identifies the Most Significant Byte (MSB) in the 32 bit field, as illustrated in Table 5. 23 Zarlink Semiconductor Inc. ZL50075 Data Sheet Address (Hex) Memory/Register Bits 40200 Bits 31:24 (MSB) 40201 Bits 23:16 40202 Bits 15:8 40203 Bits 7:0 (LSB) Table 5 - Example of Address and Byte Significance The Address Bus, A18 - 0, controls access to each 32 bit location. A0 is not used and must be connected to defined logic level. Address bit A1 and the Data Transfer Size inputs, SIZ1 - 0, identify which bytes are being accessed. In Motorola Bus Mode (IM = 0), SIZ1 - 0 form active low data strobe signals, consistent with UDS and LDS available on the MC68000 and MC68302 processors, as shown in Table 6. In Intel Bus Mode (IM = 1), SIZ1 - 0 form active low byte enable signals, consistent with BE1 and BE0 available on the Intel i960 processor, as shown in Table 6. Pin Name Motorola Mode MC68000, MC68302 Equivalent Function IM = 0 Intel Mode i960 Equivalent Function IM = 1 Data Bus Bytes Enabled SIZ1 UDS BE1 D15-8 SIZ0 LDS BE0 D7-0 Table 6 - Byte Enable Signals In both Intel and Motorola modes, the A1 address input is used to identify the word alignment in internal memory, as shown in Table 7. A1 Memory Data Word Alignment 0 Bits 31:16 1 Bits 15:0 Table 7 - Memory Data Word Alignment Data bus word alignments are shown in Table 8. An example of byte addressing is given in Table 9. Microprocessor 16 Bit Data Bus SIZ1 SIZ0 A1 Internal 32-Bit Memory or Register D15 - 8 0 1 0 Bits 31:24 0 1 1 Bits 15:8 1 0 0 Bits 23:16 1 0 1 Bits 7:0 0 0 0 Bits 31:16 0 0 1 Bits 15:0 D7 - 0 D15 - 0 1 1 X 1 Table 8 - Data Bus Word Alignment 1. X - Don’t Care 24 Zarlink Semiconductor Inc. No access ZL50075 Address (Hex) Register Description Data Sheet Register Byte A18 - 0 (binary) SIZ1 SIZ0 Comments 40200 or 40201 Group Control Register (Group 0) Bits 23:16 100 0000 0010 0000 000X† 1 0 8 bit transfer 40282 or 40283 Input Clock Control Register Bits 15:8 100 0000 0010 1000 001X† 0 1 8 bit transfer 40286 or 40287 Output Clock Control Register Bits 15:0 100 0000 0010 1000 011X† 0 0 16 bit transfer 40284 or 40285 Output Clock Control Register Bits 31:16 100 0000 0010 1000 010X† 0 0 16 bit transfer Table 9 - Byte Address Examples † - Don’t Care. A0 is not used. 10.1 10.1.1 Bus Operation Read Cycle The operation of a read cycle is illustrated in Figure 9. • The microprocessor asserts the R/W control signal high, to signal a read cycle. It also drives the address A, transfer size, SIZ1 - 0, and chip select logic drives the CS signal active low to select the ZL50075 • The microprocessor then drives the DS signal active low, to signal the start of the bus cycle. The DS signal is held low for the duration of the bus cycle • WAIT is asserted active low • The ZL50075 accesses the requested memory or register location(s), and places the requested data onto the data bus, D15 - 0. All data bus pins are driven, whether or not they are being used for the specific data transfer. Unused pins will present unknown data. If the address is to an unused area of the memory space, unknown data is presented on the data bus • The ZL50075 then de-asserts WAIT, and asserts either DTA or BERR, depending on the validity of the data transfer • When the microprocessor observes the active low state of the DTA or the BERR signal or the low-to-high transition of the WAIT signal, it terminates the bus cycle by driving the DS pin inactive high • When the ZL50075 sees the DS signal go inactive high, it removes the assertions on the DTA or BERR signals by driving them inactive high • When the ZL50075 sees the CS signal go inactive high, it tri-states the data bus, D15 - 0 and the DTA, BERR and WAIT signals. However, if CS goes inactive high before DS goes inactive high, the DTA, BERR and WAIT signals are driven inactive high before they are tri-stated • In Intel mode, DTA is always driven to signal the end of a bus cycle, regardless of BERR 25 Zarlink Semiconductor Inc. ZL50075 Data Sheet Address A, SIZ1 - 0 CS R/W DS Data DTA BERR WAIT Hi-Z Hi-Z Hi-Z Hi-Z The cycle termination signals WAIT & DTA are provided for all bus configurations. Figure 9 - Read Cycle Operation 10.1.2 Write Cycle The operation of the write cycle is illustrated in Figure 10. • The microprocessor asserts the R/W control signal low, to signal a write cycle. It also drives the address A, data transfer size, SIZ1 - 0, and chip select logic drives the CS signal active low to select the ZL50075 • The microprocessor then drives the data bus, D15 - 0 with the data to be written, and then drives the DS signal active low, to signal the start of the bus cycle. The DS signal is held low for the duration of the bus cycle • WAIT is asserted active low • The ZL50075 transfers the data presented on the data bus pins into the indicated memory or register location(s). If the address is to an unused area of the memory space, or to the data memory, no data is transferred. The microprocessor port cannot write to the Data Memory • The ZL50075 then de-asserts WAIT, and asserts either DTA or BERR, depending on the validity of the data transfer • When the microprocessor observes the active low state of the DTA or the BERR signal or the low-to-high transition of the WAIT signal, it terminates the bus cycle by driving the DS pin inactive high • When the ZL50075 sees the DS signal go inactive high, it removes the assertions on the DTA or BERR signals by driving them inactive high • When the ZL50075 sees the CS signal go inactive high, it tri-states the DTA, BERR and WAIT signals. However, if CS goes inactive high before DS goes inactive high, the DTA, BERR and WAIT signals are driven inactive high before they are tri-stated • In Intel mode, DTA is always driven to signal the end of a bus cycle, regardless of BERR 26 Zarlink Semiconductor Inc. ZL50075 Data Sheet Address SIZ1 - 0 CS R/W DS Data DTA Hi-Z BERR Hi-Z WAIT Hi-Z The cycle termination signals WAIT & DTA are provided for all bus configurations. Figure 10 - Write Cycle Operation 11.0 Power-up and Initialization of the ZL50075 11.1 Device Reset and Initialization The PWR pin is used to reset the ZL50075. When this pin is low, the following functions are performed: • Asynchronously puts the microprocessor port in a reset state • Tristates all of the output streams (SToA0 - 31, SToB0 - 31) • Preloads all of the registers with their default values (refer to the individual registers for default values) • Clears all internal counters 11.2 Power Supply Sequencing The ZL50075 has two separate power supplies: VDD_IO (3.3 V) and VDD_CORE (1.8 V). The recommended power-up sequence is for VDD_IO to be applied first, followed by the VDD_CORE supply. VDD_CORE should not lead VDD_IO supply by more than 0.3 V. Both supplies may be powered-down simultaneously. 11.3 Initialization Upon power up, the ZL50075 should be initialized as follows: • Assert PWR to low immediately after power is applied • Set the TRST pin low to disable the JTAG TAP controller • Deassert the PWR pin. • Apply the Master Clock Input (CKi0) and Master Frame Pulse Input (FPi0) to the values defined by the CK_SEL1 - 0 pins • Set the ODE pin low to disable the output streams 27 Zarlink Semiconductor Inc. ZL50075 Data Sheet Note: After the PWR reset is removed, and on the application of a suitable master clock input, it takes approximately 1 ms for the internal initialization to complete • Automatic block initialization of the Connection Memory to all zeros occurs, without microprocessor intervention • All Group Control Registers are preset to 000C000C hex, corresponding to rates of 65 Mbps, no link inversions, no fractional output bit advancements, internal clock source, and no input sample point delays • The Input Clock Control Register is preset to 0DB hex, corresponding to: • - All clock inputs set to negative logic sense - All frame pulse inputs set to negative logic sense - All input frame pulses set to ST-BUS timing The Output Clock Control Register is pre-set to 060D1C3C hex, corresponding to: - All clock outputs set to negative logic sense - All frame pulse outputs set to negative logic sense - All output frame pulses set to ST-BUS timing - All output clock source selections to internal - Clock outputs, CKo0 - 1 are preset to rates of 65 MHz and 32 MHz, respectively Note: If the master clock input, CKi0, is not available, the microprocessor port will assert BERR on all accesses and read cycles. 12.0 IEEE 1149.1 Test Access Port The JTAG test port is implemented to meet the mandatory requirements of the IEEE 1149.1 (JTAG) standard. The operation of the boundary-scan circuity is controlled by an external Test Access Port (TAP) Controller. The ZL50075 uses the public instructions defined in IEEE 1149.1, with the provision of a 16-bit Instruction Register, and three scannable Test Data Registers: Boundary Scan Register, Bypass Register and Device Identification Register. 12.1 Test Access Port (TAP) The Test Access Port (TAP) accesses the ZL50075 test functions. The interface consists of 4 input and 1 output signal. as follows: • Test Clock (TCK) - TCK provides the clock for the test logic. The TCK does not interfere with any on-chip clock and thus remains independent in the functional mode. The TCK permits shifting of test data into or out of the Boundary-Scan register cells concurrently with the operation of the device and without interfering with the on-chip logic. • Test Mode Select (TMS) - The TAP Controller uses the logic signals received at the TMS input to control test operations. The TMS signals are sampled at the rising edge of the TCK pulse. This pin is internally pulled to VDD_IO when it is not driven from an external source. • Test Data Input (TDi) - Serial input data applied to this port is fed either into the instruction register or into a test data register, depending on the sequence previously applied to the TMS input. Both registers are described in a subsequent section. The received input data is sampled at the rising edge of TCK pulses. This pin is internally pulled to VDD_IO when it is not driven from an external source. • Test Data Output (TDo) - Depending on the sequence previously applied to the TMS input, the contents of either the instruction register or data register are serially shifted out towards the TDo. The data out of the TDo is clocked on the falling edge of the TCK pulses. When no data is shifted through the boundary scan cells, the TDo driver is set to a high impedance state. 28 Zarlink Semiconductor Inc. ZL50075 • Data Sheet Test Reset (TRST) - Resets the JTAG scan structure. This pin is internally pulled to VDD_IO when it is not driven from an external source. When JTAG is not in use, this pin must be tied low for normal operation. The TAP signals are only applied when the ZL50075 is required to be in test mode. When in normal, non-test mode, TRST must be connected low to disable the test logic. The remaining test pins may be left unconnected. 12.2 Instruction Register The ZL50075 uses the public instructions defined in the IEEE 1149.1 standard. The JTAG interface contains a 16-bit instruction register. Instructions are serially loaded into the instruction register from the TDi when the TAP controller is in its shifted-OR state. These instructions are subsequently decoded to achieve two basic functions: to select the test data register that may operate while the instruction is current and to define the serial test data register path that is used to shift data between TDi and TDo during register scanning. 12.3 Test Data Register As specified in the IEEE 1149.1 standard, the ZL50075 JTAG Interface contains three test data registers: • The Boundary-Scan Register - The Boundary-Scan register consists of a series of Boundary-Scan cells arranged to form a scan path around the boundary of the ZL50075 core logic. • The Bypass Register - The Bypass register is a single stage shift register that provides a one-bit path from TDi to TDo. • The Device Identification Register - The JTAG device ID for the ZL50075 is C39B14BH 12.4 Version 0000 Part Number 1100 0011 1001 1011 Manufacturer ID 0001 0100 101 LSB 1 Boundary Scan Description Language (BSDL) A Boundary Scan Description Language (BSDL) file is available from Zarlink Semiconductor to aid in the use of the IEEE 1149.1 test interface. 29 Zarlink Semiconductor Inc. ZL50075 13.0 Data Sheet Memory Map of ZL50075 The memory map for the ZL50075 is given in Table 10. Address (Hex) Description 00000 - 1FFFF Connection Memory 20000 - 27FFF Connection Memory LSB 28000 - 2FFFF Data Memory: Read only; Bus error on write (BERR) 30000 - 37FFF Input BER Enable Control Memory 38000 - 3FFFF Invalid Address. Access causes Bus error (BERR) 40000 - 401FF BER Counters 40200 - 4027F Group Control Registers 40280 - 40283 Input Clock Control Register 40284 - 40287 Output Clock Control Register 40288 - 4028B Block Init Register 4028C - 4028F Block Init Enable 40290- 7FFFF Invalid Address. Access causes Bus error (BERR) Table 10 - Memory Map 14.0 Detailed Memory and Register Descriptions This section describes all the memories and registers that are used in this device. 14.1 Connection Memory Address range 00000 - 1FFFF hex. On power-up, all Connection Memory locations are initialized automatically to 00000000 hex, using the Block Initialization feature, as described in Section 14.7 and Section 14.8. The 32 bit Connection Memory has 32,768 locations. Each 32 bit long-word is used to program the desired source data and any other per-channel characteristics of one output time-slot. The memory map for the Connection Memory is sub-divided into 32 blocks, each corresponding to one of the possible 32 output stream group numbers. The address ranges for these blocks are illustrated in Table 11. 30 Zarlink Semiconductor Inc. ZL50075 Data Sheet Output Group Start Address (Hex) Address Range (Hex) Output Group Start Address (Hex) Address Range (Hex) 0 000000 000000 - 000FFF 16 010000 010000 - 010FFF 1 001000 001000 - 001FFF 17 011000 011000 - 011FFF 2 002000 002000 - 002FFF 18 012000 012000 - 012FFF 3 003000 003000 - 003FFF 19 013000 013000 - 013FFF 4 004000 004000 - 004FFF 20 014000 014000 - 014FFF 5 005000 005000 - 005FFF 21 015000 015000 - 015FFF 6 006000 006000 - 006FFF 22 016000 016000 - 016FFF 7 007000 007000 - 007FFF 23 017000 017000 - 017FFF 8 008000 008000 - 008FFF 24 018000 018000 - 018FFF 9 009000 009000 - 009FFF 25 019000 019000 - 019FFF 10 00A000 00A000 - 00AFFF 26 01A000 01A000 - 01AFFF 11 00B000 00B000 - 00BFFF 27 01B000 01B000 - 01BFFF 12 00C000 00C000 - 00CFFF 28 01C000 01C000 - 01CFFF 13 00D000 00D000 - 00DFFF 29 01D000 01D000 - 01DFFF 14 00E000 00E000 - 00EFFF 30 01E000 01E000 - 01EFFF 15 00F000 00F000 - 00FFFF 31 01F000 01F000 - 01FFFF Table 11 - Connection Memory Group Address Mapping The mapping of each output stream, SToAn and SToBn, depends on the programmed bit rate. The address offset range for each stream is illustrated in Table 12. Output Group Data Rate Timeslot Range Output Stream Stream Address Offset Range (Hex) 65 Mbps 0 - 1023 SToAn 00000 - 00FFF SToBn N/A SToAn 00000 - 007FF SToBn 00800 - 00FFF SToAn 00000 - 003FF SToBn 00400 - 007FF N/A BERR 00800 - 00FFF 0 - 127 SToAn 00000 - 001FF SToBn 00200 - 003FF BERR 00400 - 00FFF 32 Mbps 16 Mbps 8 Mbps 0 - 511 0 - 255 N/A Table 12 - Connection Memory Stream Address Offset at Various Output Rates 31 Zarlink Semiconductor Inc. ZL50075 Data Sheet The address range for a particular stream is given by adding the group start address, as indicated in Table 11, to the appropriate stream offset range, as indicated in Table 12. For example, the Connection Memory address range for SToB12 operating at 32 Mbps is 00C800-00CFFF. Each output channel timeslot occupies a range of 4 addresses in the Connection Memories. The timeslot address offset is illustrated in Table 13. It shows the maximum number of timeslots that a stream can have, but the actual number of timeslots available depends on the output data rates, as illustrated in Table 1 and Table 12. Timeslot SToAn SToBn Address Offset hex 0 0 000 1 1 004 2 2 008 - - - 510 510 7F8 511 511 7FC 512 800 513 804 - - 1021 FF4 1022 FF8 1023 FFC Table 13 - Connection Memory Timeslot Address Offset Range 32 Zarlink Semiconductor Inc. ZL50075 14.1.1 Data Sheet Connection Memory Bit Functions The bit functions of the connection memory are illustrated in Table 14. External Read/Write Address: 000000H Reset Value: 0000H 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 PCF 2 PCF 1 PCF 0 V/D ICL 1 ICL 0 OCL 1 OCL 0 0 0 0 0 0 0 0 0 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 0 GP 4 GP 3 GP 2 GP 1 GP 0 STCH 9 STCH 8 STCH 7 STCH 6 STCH 5 STCH 4 STCH 3 STCH 2 STCH 1 STCH 0 Bit Name 31 - 29 PCF2 - 0 28 V/D 27 - 26 ICL1 - 0 Description Per Channel Function PCF2 - 0 Function Description 000 OT Output is tri-stated 001 FH Output drives high always 010 MSG Output is in message mode 011 VAR Variable delay connection mode 100 CD Constant delay connection mode 101 PRBS 110 OT Output is tri-stated 111 OT Output is tri-stated PRBS Generator Voice/Data Control When this bit is low, the corresponding channel is for voice. When this bit is high, the corresponding channel is for data. Input Coding Law ICL1 - 0 Input Coding Law For Voice (V/D bit = 0) For Data (V/D bit = 1) 00 CCITT.ITU A-Law No Code 01 CCITT.ITU µ-Law ABI 10 A-Law w/o ABI Inverted ABI 11 µ-Law w/o Mag. Inv All Bits Inverted Table 14 - Connection Memory Bits (CMB) 33 Zarlink Semiconductor Inc. ZL50075 Data Sheet External Read/Write Address: 000000H Reset Value: 0000H 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 PCF 2 PCF 1 PCF 0 V/D ICL 1 ICL 0 OCL 1 OCL 0 0 0 0 0 0 0 0 0 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 0 GP 4 GP 3 GP 2 GP 1 GP 0 STCH 9 STCH 8 STCH 7 STCH 6 STCH 5 STCH 4 STCH 3 STCH 2 STCH 1 STCH 0 Bit Name 25 - 24 OCL1 - 0 Description Output Coding Law OCL1 - 0 Output Coding Law For Voice (V/D bit = 0) For Data (V/D bit = 1) 00 CCITT.ITU A-Law No Code 01 CCITT.ITU µ-Law ABI 10 A-Law w/o ABI Inverted ABI 11 µ-Law w/o Mag. Inv All Bits Inverted 23 - 15 Unused Reserved. In normal functional mode, these bits MUST be set to zero. 14 - 10 GP4 - 0 Source Group Selection. These bits define the input/source group number (31 - 0) 9-0 STCH 9-0 Source Stream and Channel Selection / Message Mode Data In connection mode (constant/variable delay), these bits define the input/source stream and channel number, depending on the data rate. For 65.536 Mbps, bits 9 - 0 select the input channel (0 - 1023). For 32.768 Mbps, bits 9 - 1 select the input channel (0 - 511). Bit 0 selects stream STiA (0) or STiB (1). For 16.869 Mbps, bits 9 - 2 select the input channel (0 - 255). Bit 0 selects stream STiA (0) or STiB (1). Bit 1 MUST be set to 0. For 8.192 Mbps, bits 9 - 3 select the input channel (0 - 127). Bit 0 selects stream STiA (0) or STiB (1). Bit 2-1 MUST be set to 00. In message mode, bits 7 - 0 define the output data. The data is output sequentially with bit 7 being output first. Bits 9 - 8 are not used. Table 14 - Connection Memory Bits (CMB) (continued) 14.1.2 Connection Memory LSB The Connection Memory Least Significant Byte field is provided to give a convenient alternative way to modify the output data for a stream in message mode. In this memory address range, all of the connection memory least significant bytes (bits 7 - 0) are available for read/write in consecutive address locations. This feature is provided for programming convenience. It can allow higher programming bandwidth on message mode streams. For example, one longword access to this memory space can read or set the message bytes in four consecutive connection memory locations. Access to this memory space is big-endian, with the most significant bytes on the data bus accessing the lower address of the connection memory. Addressing into each of the streams is illustrated in Table 15. 34 Zarlink Semiconductor Inc. ZL50075 Data Sheet Output Group Start Address (Hex) Address Range (Hex) Output Group Start Address (Hex) Address Range (Hex) 0 020000 020000 - 0203FF 16 024000 024000 - 0243FF 1 020400 020400 - 0207FF 17 024400 024400 - 0247FF 2 020800 020800 - 020BFF 18 024800 024800 - 024BFF 3 020C00 020C00 - 020FFF 19 024C00 024C00 - 024FFF 4 021000 021000 - 0213FF 20 025000 025000 - 0253FF 5 021400 021400 - 0217FF 21 025400 025400 - 0257FF 6 021800 021800 - 021BFF 22 025800 025800 - 025BFF 7 021C00 021C00 - 021FFF 23 025C00 025C00 - 025FFF 8 022000 022000 - 0223FF 24 026000 026000 - 0263FF 9 022400 022400 - 0227FF 25 026400 026400 - 0267FF 10 022800 022800 - 022BFF 26 026800 026800 - 026BFF 11 022C00 022C00 - 022FFF 27 026C00 026C00 - 026FFF 12 023000 023000 - 0233FF 28 027000 027000 - 0273FF 13 023400 023400 - 0237FF 29 027400 027400 - 0277FF 14 023800 023800 - 023BFF 30 027800 027800 - 027BFF 15 023C00 023C00 - 023FFF 31 027C00 027C00 - 027FFF Table 15 - Connection Memory LSB Group Address Mapping Output Group Data Rate Timeslot Range Output Stream Stream Address Offset Range (Hex) 65 Mbps 0 - 1023 SToAn 00000 - 003FF SToBn N/A SToAn 00000 - 001FF SToBn 00200 - 003FF SToAn 00000 - 000FF SToBn 00100 - 001FF N/A BERR 00200 - 003FF 0 - 127 SToAn 00000 - 0007F SToBn 00080 - 000FF BERR 00100 - 003FF 32 Mbps 16 Mbps 8 Mbps 0 - 511 0 - 255 N/A Table 16 - Connection Memory LSB Stream Address Offset at Various Output Rates Within each stream group, the mapping of each of the actual output streams, SToAn and SToBn, depends on the output rate programmed into the Group Control Registers. The address offsets to these control areas for each of the output streams are illustrated in Table 16. 35 Zarlink Semiconductor Inc. ZL50075 14.2 Data Sheet Data Memory The data memory field is a read only address range used to monitor the data being received by the input streams. Addressing into each of the streams is illustrated in Table 17. Input Group Start Address (Hex) Address Range (Hex) Input Group Start Address (Hex) Address Range (Hex) 0 028000 028000 - 0283FF 16 02C000 02C000 - 02C3FF 1 028400 028400 - 0287FF 17 02C400 02C400 - 02C7FF 2 028800 028800 - 028BFF 18 02C800 02C800 - 02CBFF 3 028C00 028C00 - 028FFF 19 02CC00 02CC00 - 02CFFF 4 029000 029000 - 0293FF 20 02D000 02D000 - 02D3FF 5 029400 029400 - 0297FF 21 02D400 02D400 - 02D7FF 6 029800 029800 - 029BFF 22 02D800 02D800 - 02DBFF 7 029C00 029C00 - 029FFF 23 02DC00 02DC00 - 02DFFF 8 02A000 02A000 - 02A3FF 24 02E000 02E000 - 02E3FF 9 02A400 02A400 - 02A7FF 25 02E400 02E400 - 02E7FF 10 02A800 02A800 - 02ABFF 26 02E800 02E800 - 02EBFF 11 02AC00 02AC00 - 02AFFF 27 02EC00 02EC00 - 02EFFF 12 02B000 02B000 - 02B3FF 28 02F000 02F000 - 02F3FF 13 02B400 02B400 - 02B7FF 29 02F400 02F400 - 02F7FF 14 02B800 02B800 - 02BBFF 30 02F800 02F800 - 02FBFF 15 02BC00 02BC00 - 02BFFF 31 02FC00 02FC00 - 02FFFF Table 17 - Data Memory Group Address Mapping Within each stream group, the mapping of each of the actual input streams, STiAn and STiBn, depends on the input rate programmed into the Group Control Registers. The address offsets to these data areas for each of the input streams are illustrated in Table 18. Input Group Data Rate Time-slot Range Input Streams Address Offset Range (Hex) 65 Mbps 0 - 1023 STiAn 00000 - 003FF STiBn N/A STiAn 00000 - 001FF STiBn 00200 - 003FF STiAn 00000 - 000FF STiBn 00100 - 001FF N/A BERR 00200 - 003FF 0 - 127 STiAn 00000 - 0007F STiBn 00080 - 000FF BERR 00100 - 003FF 32 Mbps 16 Mbps 8 Mbps 0 - 511 0 - 255 N/A Table 18 - Data Memory Stream Address Offset at Various Output Rates 36 Zarlink Semiconductor Inc. ZL50075 Data Sheet The address ranges for the data memory portion corresponding to each of the actual input streams, STiAn and STiBn, for any particular input group number is calculated by adding the Start Address for the particular group, as indicated in Table 17, to the appropriate Address Offset Range, as indicated in Table 18. The time-slots map linearly into the appropriate address offset range. (i.e., timeslots 0, 1, 2,... map into addresses 00000, 00001, 00002,...) The entire data memory is a read only structure. Any write attempts will result in a bus error. BERR is driven active low to terminate the bus cycle. 14.3 14.3.1 BER Control Memory and Error Counters Input BER Enable Control Memory The BER Enable Control Memory (IBERECM) is a read/write memory block. Each memory location is used to control the BER counter of one incoming timeslot. Addressing into each of the streams is illustrated in Table 19. Input Group Start Address (Hex) Address Range (Hex) Input Group Start Address (Hex) Address Range (Hex) 0 030000 030000 - 0303FF 16 034000 034000 - 0343FF 1 030400 030400 - 0307FF 17 034400 034400 - 0347FF 2 030800 030800 - 030BFF 18 034800 034800 - 034BFF 3 030C00 030C00 - 030FFF 19 034C00 034C00 - 034FFF 4 031000 031000 - 0313FF 20 035000 035000 - 0353FF 5 031400 031400 - 0317FF 21 035400 035400 - 0357FF 6 031800 031800 - 031BFF 22 035800 035800 - 035BFF 7 031C00 031C00 - 031FFF 23 035C00 035C00 - 035FFF 8 032000 032000 - 0323FF 24 036000 036000 - 0363FF 9 032400 032400 - 0327FF 25 036400 036400 - 0367FF 10 032800 032800 - 032BFF 26 036800 036800 - 036BFF 11 032C00 032C00 - 032FFF 27 036C00 036C00 - 036FFF 12 033000 033000 - 0333FF 28 037000 037000 - 0373FF 13 033400 033400 - 0337FF 29 037400 037400 - 0377FF 14 033800 033800 - 033BFF 30 037800 037800 - 037BFF 15 033C00 033C00 - 033FFF 31 037C00 037C00 - 037FFF Table 19 - BER Enable Control Memory Group Address Mapping Each byte location of the BER Enable Memory contains one read/write BER counter enable (BCE) bit, mapped into the D0 location. If the BCE bit is set, then the BER counter for the corresponding stream and timeslot is enabled for the duration of that timeslot. If the BCE bit is cleared the counter is disabled. 37 Zarlink Semiconductor Inc. ZL50075 Data Sheet Input Group Data Rate Time-slot Range Input Streams Address Offset Range (Hex) 65 Mbps 0 - 1023 STiAn 00000 - 003FF STiBn N/A 32 Mbps 0 - 511 STiAn 00000 - 001FF STiBn 00200 - 003FF STiAn 00000 - 000FF STiBn 00100 - 001FF N/A BERR 00200 - 003FF 0 - 127 STiAn 00000 - 0007F STiBn 00080 - 000FF BERR 00100 - 003FF 16 Mbps 0 - 255 8 Mbps N/A Table 20 - BER Enable Control Memory Stream Address Offset at Various Output Rates 14.3.2 BER Counters There are a total of 64 Bit Error Counters, corresponding to the 64 serial input streams. Each count value is 32 bits wide, but only the least significant 16 bits are used. The most significant 16 bits of the bit error counters will always read back zero. A write operation to any byte of the counter, including the 16 most significant bits, will clear that counter. Each bit error counter contains the number of single bit errors detected on the corresponding stream, since the counter was last cleared. If the number of bit errors detected exceeds 65535 (decimal), the counter will hold that value until it is cleared. BER Input Group BER Input Stream Start Address (Hex) End Address (Hex) 0 STiA0 40000 40003 STiB0 40080 40083 N/A BERR - 40100 BERR - 40183 STiA1 40004 40007 STiB1 40084 40087 N/A BERR - 40104 BERR - 40187 STiA2 40008 4000B STiB2 40088 4008B N/A BERR - 40108 BERR - 4018B . . . . . . . . . . . . 31 STiA31 4007C 4007F STiB31 400FC 400FF N/A BERR - 4017C BERR - 401FF 1 2 Table 21 - BER Counter Group and Stream Address Mapping 38 Zarlink Semiconductor Inc. ZL50075 14.4 Data Sheet Group Control Registers The ZL50075 addresses the issues of a simple programming model and automatic stream configuration by defining a basic switching bit rate of 65.536 Mbps and by grouping the I/O streams. Each TDM I/O group contains 2 input and 2 output streams. The 2 input streams in the same group have identical input characteristics, and similarly, the 2 output streams in the same group have identical output characteristics. However, input and output streams in the same group can have different input and output operation characteristics. The Group Control Registers are provided for setting the operating characteristics of the TDM input and output streams. All of the Group Control Registers are mapped long-word aligned on 32 bit boundaries in the memory space. Each of the 32 registers is used to control one group. The mapping of the Group Control Registers to the I/O group numbers is illustrated in Table 22. The bit functions of each of the Group Control Registers are illustrated in Table 23. TDM Group Group Control Register Address (Hex) 0 40200 - 40203 1 40204 - 40207 2 40208 - 4020B 3 4020C - 4020F : : : : 29 40274 - 40277 30 40278 - 4027B 31 4027C - 4027F Table 22 - Group Control Register Addressing External Read/Write Address: 40200H - 4027FH Reset Value: 000C000CH 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 0 0 0 0 0 0 0 0 0 OSI OSBA 1 OSBA 0 OSBR 1 OSBR 0 OSSRC 1 OSSRC 0 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 0 0 0 0 0 0 ISI ISPD 4 ISPD 3 ISPD 2 ISPD 1 ISPD 0 ISBR 1 ISBR 0 ISSRC 1 ISSRC 0 Bit Name 31 - 23 Unused 22 OSI Description Reserved. In normal functional mode, these bits MUST be set to zero. Output Stream Inversion For normal operation, this bit is set low. To invert the output stream, set this bit high. Table 23 - Group Control Register 39 Zarlink Semiconductor Inc. ZL50075 Data Sheet External Read/Write Address: 40200H - 4027FH Reset Value: 000C000CH 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 0 0 0 0 0 0 0 0 0 OSI OSBA 1 OSBA 0 OSBR 1 OSBR 0 OSSRC 1 OSSRC 0 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 0 0 0 0 0 0 ISI ISPD 4 ISPD 3 ISPD 2 ISPD 1 ISPD 0 ISBR 1 ISBR 0 ISSRC 1 ISSRC 0 Bit Name 21 - 20 OSBA1 - 0 19 - 18 OSBR1 - 0 Description Output Stream Bit Advancement OSBA1 - 0 Non-65 Mbps 65 Mbps 00 0 ns 0 ns 01 7.6 ns 3.8 ns 10 15.2 ns 7.6 ns 11 22.8 ns 11.4 ns Output Stream Bit Rate OSBR1 - 0 Bit Rates Per Group SToA SToB 00 8.192 Mbps 8.192 Mbps 01 16.384 Mbps 16.384 Mbps 10 32.768 Mbps 32.768 Mbps 11 65.536 Mbps Not Used Unused streams are tri-stated. If the internal system clock is used as the clock source, all the above data rates are available. Otherwise, the data rate cannot exceed the selected clock source’s rate. 17 - 16 OSSRC1 - 0 15 - 10 Unused 9 ISI 8-4 ISPD4 - 0 Output Stream Clock Source Select OSSRC1 - 0 Output Timing Source 00 Internal System Clock 01 CKi0 and FPi0 10 Reserved 11 Reserved Reserved. In normal functional mode, these bits MUST be set to zero. Input Stream Inversion For normal operation, this bit is set low. To invert the input stream, set this bit high. Input Sampling Point Delay Default Sampling Point is 3/4. Adjust according to Figure on page 18. Table 23 - Group Control Register (continued) 40 Zarlink Semiconductor Inc. ZL50075 Data Sheet External Read/Write Address: 40200H - 4027FH Reset Value: 000C000CH 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 0 0 0 0 0 0 0 0 0 OSI OSBA 1 OSBA 0 OSBR 1 OSBR 0 OSSRC 1 OSSRC 0 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 0 0 0 0 0 0 ISI ISPD 4 ISPD 3 ISPD 2 ISPD 1 ISPD 0 ISBR 1 ISBR 0 ISSRC 1 ISSRC 0 Bit Name 3-2 ISBR1 - 0 Description Input Stream Bit Rate ISBR1 - 0 00 01 10 11 Bit Rates Per Group STiA STiB 8.192 Mbps 16.384 Mbps 32.768 Mbps 65.536 Mbps 8.192 Mbps 16.384 Mbps 32.768 Mbps Not Used Unused streams must be connected to ground. If the internal system clock is used as the clock source, all the above data rates are available. Otherwise, the data rate cannot exceed the selected clock source’s rate. 1-0 ISSRC1 - 0 Input Stream Clock Source Select ISSRC1 - 0 Input Timing Source 00 Internal System Clock 01 CKi0 and FPi0 10 Reserved 11 Reserved Table 23 - Group Control Register (continued) The Group Control Register is a static control register. Changes to bit settings may disrupt data flow on the selected port for a maximum of 2 frames. 41 Zarlink Semiconductor Inc. ZL50075 14.5 Data Sheet Input Clock Control Register The Input Clock Control Register is used to select the logic sense of the input clock. External Read/Write Address: 40280H Reset Value: 0DBH 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 0 0 0 0 0 0 0 0 1 1 0 1 1 GCI SEL0 FPI POL0 CKI POL0 Bit Name Description 31 - 9 Unused Reserved. In normal functional mode, these bits MUST be set to zero. 8-3 Unused Reserved. In normal functional mode, these bits MUST be set to 011011. 2 GCISEL0 GCI-Bus Selection for FPi0 When this bit is low, FPi0 is set for ST-BUS mode. When this bit is high, FPi0 is set for GCI-Bus mode. 1 FPIPOL0 Frame Pulse Polarity Selection for FPi0 When this bit is low, FPi0 is set for active high. When this bit is high, FPi0 is set for active low. 0 CKIPOL0 Clock Polarity Selection for CKi0 When this bit is low, CKi0 is set for the positive clock edge. When this bit is high, CKi0 is set for the negative clock edge. Table 24 - Input Clock Control Register 42 Zarlink Semiconductor Inc. ZL50075 14.6 Data Sheet Output Clock Control Register The Output Clock Control Register is used to select the desired source, frequency, and logic sense of the output clocks. The bit functions of the Output Clock Control Register are illustrated in Table 25. External Read/Write Address: 40284H Reset Value: 060D1C3CH 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 0 0 0 0 0 1 1 0 0 0 0 0 1 1 0 1 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 0 0 GCO SEL1 FPO POL1 CKO POL1 CKO1 RATE1 CKO1 RATE0 CKO1 SRC1 CKO1 SRC0 GCO SEL0 FPO POL0 CKO POL0 CKO0 RATE1 CKO0 RATE0 CKO0 SRC1 CKO0 SRC0 Bit Name Description 31 - 28 Unused Reserved. In normal functional mode, these bits MUST be set to zero. 27 - 14 Unused Reserved. In normal functional mode, these bits MUST be set to 01100000110100. 13 GCO SEL1 GCI-Bus Selection for FPo1 When this bit is low, FPo1 is set for ST-BUS mode. When this bit is high, FPo1 is set for GCI-Bus mode. 12 FPO POL1 Frame Pulse Polarity Selection for FPo1 When this bit is low, FPo1 is set for active high. When this bit is high, FPo1 is set for active low. 11 CKO POL1 Clock Polarity Selection for CKo1 When this bit is low, CKo1 is set for the positive clock edge. When this bit is high, CKo1 is set for the negative clock edge. 10 - 9 CKO1 RATE 1-0 Output Clock Rate for CKo1 and FPo1 The output clock rate can not exceed the selected clock source rate. All rates are available when the internal system clock is selected as clock source. CKO1RATE1 - 0 8-7 CKO1 SRC 1-0 CKo1 FPo1 00 8.192 MHz 120 ns 01 16.384 MHz 60 ns 10 32.768 MHz 30 ns 11 65.536 MHz 15 ns Output Clock Source for CKo1 and FPo1 CKO1SRC1 - 0 Output Timing Source 00 Internal System Clock 01 CKi0 and FPi0 10 Reserved 11 Reserved Table 25 - Output Clock Control Register 43 Zarlink Semiconductor Inc. ZL50075 Data Sheet External Read/Write Address: 40284H Reset Value: 060D1C3CH 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 0 0 0 0 0 1 1 0 0 0 0 0 1 1 0 1 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 0 0 GCO SEL1 FPO POL1 CKO POL1 CKO1 RATE1 CKO1 RATE0 CKO1 SRC1 CKO1 SRC0 GCO SEL0 FPO POL0 CKO POL0 CKO0 RATE1 CKO0 RATE0 CKO0 SRC1 CKO0 SRC0 Bit Name Description 6 GCO SEL0 GCI-Bus Selection for FPo0 When this bit is low, FPo0 is set for ST-BUS mode. When this bit is high, FPo0 is set for GCI-Bus mode. 5 FPO POL0 Frame Pulse Polarity Selection for FPo0 When this bit is low, FPo0 is set for active high. When this bit is high, FPo0 is set for active low. 4 CKO POL0 Clock Polarity Selection for CKo0 When this bit is low, CKo0 is set for the positive clock edge. When this bit is high, CKo0 is set for the negative clock edge. 3-2 CKO0 RATE 1-0 Output Clock Rate for CKo0 and FPo0 The output clock rate can not exceed the selected clock source rate. All rates are available when the internal system clock is selected as clock source. CKO0RATE1 - 0 1-0 CKO0 SRC 1-0 CKo0 FPo0 00 8.192 MHz 120 ns 01 16.384 MHz 60 ns 10 32.768 MHz 30 ns 11 65.536 MHz 15 ns Output Clock Source for CKo0 and FPo0 CKO0SRC1 - 0 Output Timing Source 00 Internal System Clock 01 CKi0 and FPi0 10 Reserved 11 Reserved Table 25 - Output Clock Control Register (continued) 44 Zarlink Semiconductor Inc. ZL50075 14.7 Data Sheet Block Init Register The Block Init Register is a 32 bit read/write register at address 040288 - 04028BH. The Block Init Register is used during block initialization of the connection memory. A block initialization automatically occurs at power-up. However, it is possible to perform a block initialization at any time. During Block Initialization, the value of the Block Init Register is copied to all connection memory locations in an operation that runs in about 120 µs. If the Block Init Register is modified during a block initialization, the new value used is ignored. 14.8 Block Init Enable Register The Block Init Enable Register is a 32 bit read/write register at address 04028C - 04028FH. The Block Init Enable Register is used to initiate a block initialization of the connection memory. A block initialization automatically occurs at power-up. Since the Block Init Register is cleared at power-up this automatic block initialization will write all zeros to all Connection Memory Bits. However, it is possible to perform a block initialization at any time. To begin a block initialization, the hex value 31415926 must be written to the Block Init Enable Register. If a block initialization is signaled while one is in progress, the signal is ignored, and the currently active block initialization is allowed to complete. The value read back from the Block Init Enable Register is different from the value written. It represents both the block initialization status, and the power-up reset initialization status. The meaning of the initialization status bits is illustrated in Table 26. The bits 31 - 2 always read back 0. Bit Name Description 0 Block Init Status 0 if Block initialization is completed; 1 if Block initialization is in progress 1 Reset Init Status 0 if Reset initialization is completed 1 if Reset initialization is in progress Table 26 - Block and Power-up Initialization Status Bits Any access to the connection memory or the data memory during a block initialization or a reset initialization will result in a bus error, BERR. All TDM outputs are tri-stated during any block initialization. 45 Zarlink Semiconductor Inc. ZL50075 15.0 Data Sheet DC/AC Electrical Characteristics Absolute Maximum Ratings1 - Voltages are with respect to ground (VSS) unless otherwise stated. Characteristics Sym. Min. VDD_IO Typ.2 Max. Unit -0.5 5.0 V VDD_CORE -0.5 5.0 V 1 Chip I/O Supply Voltage 2 Chip Core Supply Voltage 3 Input Voltage (non-5 V tolerant inputs) VI_3V -0.5 VDD_IO + 0.5 V 4 Input Voltage (5 V tolerant inputs) VI_5V -0.5 7.0 V 5 Continuous Current at digital outputs Io 15 mA 6 Package power dissipation PD 2.1 W 7 Storage temperature TS +125 °C Note 1: Note 2: - 55 Exceeding these values may cause permanent damage. Functional operation under these conditions is not implied. Typical figures are at 25°C, V DD_CORE at 1.8 V and V DD_IO at 3.3 V and are for design aid only: not guaranteed and not subject to production testing. Recommended Operating Conditions - Voltages are with respect to ground (VSS) unless otherwise stated. Characteristics Sym. Min. Typ.1 Max. Unit TOP -40 25 +85 °C VDD_CORE 1.71 1.8 1.89 V VDD_IO 3.0 3.3 3.6 V V 1 Operating Temperature 2 Positive Supply Core 3 Positive Supply I/O 4 Input Voltage (non-5 V tolerant inputs) VI_3V 0 VDD_IO 5 Input Voltage (5 V tolerant inputs) VI_5V 0 5.5 Note 1: Typical figures are at 25°C, V DD_CORE at 1.8 V and V DD_IO at 3.3 V and are for design aid only: not guaranteed and not subject to production testing. 46 Zarlink Semiconductor Inc. ZL50075 Data Sheet DC Electrical Characteristics - Voltages are with respect to ground (VSS) unless otherwise stated. Characteristics Sym. Unit IDD_CORE 500 mA IDD_IO 62 mA Core Supply Current2 2 I/O Supply Current 3 Leakage Current IDDQ 4 Dynamic Power Dissipation PDD 5 Input High Voltage VIH 6 Input Low Voltage 3 Typ.1 Max. 1 Min. Test Conditions Outputs Unloaded µA 105 1.2 2.0 W Outputs Unloaded V VIL 0.8 V IIL 5 µA 0≤