ACE9050
49
INDEX
FUNCTIONAL OVERVIEW
PIN DESCRIPTIONS
ELECTRICAL CHARACTERISTICS
DC Characteristics
AC Characteristics
TIMING DIAGRAMS
Normal Mode Processor Interface
Read Cycle
Write Cycle
Emulation Mode Processor Interface
Read and Write Cycles
Serial Interface Block
ACEBus Read and Write Timings
SynthBus Timing
INTERNAL REGISTERS AND RESET STATUS
ACE9050 Registers
6303 Registers
MODES OF OPERATION
1.Normal Mode
2.Emulation Mode
3.Service Mode
4.Test Mode
5.Power down Modes
FUNCTIONAL DESCRIPTIONS
1. ACE9050 6303
General Description
Pin Description
Clock
I/O Port 1
I/O Port 2
Programmable Timer
Serial Communication Interface SCI (UART)
RAM Control Register
Operating Modes
Low Power Consumption Modes
Address Data & Memory Control
Interrupt Processing
Error Processing
2. INTERNAL ROM BOOT BLOCK
Normal Mode
Service Mode
Steps 1 and 2
Step 3 Normal Mode
Step 3 Service Mode
Steps 4,5 and 6
Motorola S Format
Binary Dump
Step 7 Interrupt Vector table
RAM Area Reserved for IROM Operation
3. DECODER
4. BUS INTERFACE AND MEMORY BANKING
Memory Map and Banked Addressing
Non-Banked Area (Root)
Banked Area
Banked Address System Memory Map
5. INTERRUPTS
Masking Interrupts
Internal Interrupt Control Port
External Interrupt Control Port
6. EXTERNAL PORTS & MULTIPLEXER
7. CLOCK GENERATOR
8. BAUD RATE GENERATOR
9. EXTERNAL RESET
10. I
2
C INTERFACE
General
SEL_I2C Register
I2C_CNTR Register
I2C_STAT Register
I2C_CCR Register
I2C_ADDR Register
I2C_DATA Register
Clock Synchronisation
Bus Arbitration
Bus and Internal Clock Speeds
Modes Of Operation
Master Transmit
1. Transmit Start Condition
2. Transmit Slave Address and Write
3. Transmit Data
4. Transmit Stop
Master Receive
1. Transmit Start Condition
2. Transmit Slave Address and Read
3. Receive Data
4. Transmit Stop
Slave Transmit
1. Entering Slave Transmit Mode
2. Sending Data
3. Completing transfer
Slave Receive
1. Entering Slave Receive Mode
2. Receiving Data
3. Completing transfer
RADIO FUNCTIONS
1. INTERNAL CONFIGURATION REGISTERS
2. AMPS TACS MODEM AND SAT CONTROLLER
General Description
Interrupts
Modem Block Descriptions
Controller
Discriminator
Data Decoder
Word Sync Detector
Modes of Operation
Control Channel
Voice Channel
Data Transmitter
Data Transmission Sequence
SAT Management
SAT Detector
SAT Transmitter
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