FIC a985 Servicehandbuch
Hardware Functional Overview
FIC A985 Service Manual
4-19
2. Get SMBus I/O port base address by reading from SmbBA register.
3. Clear SMBus status by writing 1Eh to SmbHstSts register.
4. Write the PMU07 slave address to SmbHstAdd register.
3. Clear SMBus status by writing 1Eh to SmbHstSts register.
4. Write the PMU07 slave address to SmbHstAdd register.
−
Send command to PMU08 -- Slave address is 04h.
−
Read data from PMU08 -- Slave address is 05h.
5. Write the desired command to SmbHstCmd register.
6. Write the desired parameters to SmbHstDat0 (High byte) and SmbHstDat1 (Low byte)
6. Write the desired parameters to SmbHstDat0 (High byte) and SmbHstDat1 (Low byte)
registers if the system wants to send command to PMU08.
7. Wait for SMBus interrupt occurred by monitoring SmbHstSts register INTR bit.
8. Get the desired data by reading from SmbHstDat0 (High byte) and SmbHstDat1
8. Get the desired data by reading from SmbHstDat0 (High byte) and SmbHstDat1
(Low byte) registers if the system wants to read data from PMU08.
Features Summary of the Micro-P:
•
5 channels 8-bit analog to digital converter
•
Timer0: 8-bit tuner/counter with 8-bit prescaler
•
Timer1: 16-bit timer/counter. TMR1 can be incremented during sleep via external
crystal/clock
•
Timer2: 8-bit timer/counter with 8-bit period register, prescaler and postscaler
•
Capture, Compare, PWM module
•
Synchronous Serial port (SSP) with SPI and I
2
C
•
Universal Synchronous Asynchronous Receiver Transmitter (USART/SCI)
•
Brown-out detection circuitry for Brown-out Reset (BOR)
•
2K bytes program memory
•
128 bytes data memory
•
22 I/O pin
•
8 interrupt sources
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