HD64336901G Renesas Technology, HD64336901G Datasheet - Page 280

• Manufacturer Part Number: HD64336901G
• Description: (HD64xxx Series) 16-BIT MICROCONTROLLER
• Manufacturer: Renesas Technology

Rev. 1.00, 11/03, page 252 of 376
No
No
Clear ACKBT in ICIER to 0
Set ACKBT in ICIER to 1
Dummy-read ICDRR
Read RDRF in ICSR
Read RDRF in ICSR
Slave receive mode
Clear AAS in ICSR
Read ICDRR
Read ICDRR
Read ICDRR
Last receive
RDRF=1 ?
RDRF=1 ?
End
- 1?
Figure 15.20 Sample Flowchart for Slave Receive Mode
Yes
Yes
No
Yes
Note:
[1]
[2]
[3]
[4]
[5]
[6]
[7]
[8]
[9]
[10]
When one byte is received, steps [2] to [6] are skipped after step [1],
before jumping to step [7]. The step [8] is dammy-read in ICDRR.
[1] Clear the AAS flag.
[2] Set acknowledge to the transmit device.
[3] Dummy-read ICDRR.
[4] Wait for 1 byte to be received.
[5] Check whether it is the (last receive - 1).
[6] Read the receive data.
[7] Set acknowledge of the last byte.
[8] Read the (last byte - 1) of receive data.
[9] Wait the last byte to be received.
[10] Read for the last byte of receive data.