h8s-2111b Renesas Electronics Corporation., h8s-2111b Datasheet - Page 359

• Manufacturer Part Number: h8s-2111b
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family / H8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

Continuous Receive Operation:
Figure 13.20 shows the sample flowchart for the operations in slave receive mode (HNDS = 0).
Figure 13.20 Sample Flowchart for Operations in Slave Receive Mode (HNDS = 0)
Read AASX, AAS and ADZ in ICSR
No
No
and TRS = 0 in ICCR
Set HNDS = 0 in ICXR
Set ACKB = 0 in ICSR
Set ACKB = 1 in ICSR
Slave receive mode
Read IRIC in ICCR
Clear IRIC in ICCR
Clear IRIC in ICCR
Clear IRIC in ICCR
Read IRIC in ICCR
Clear IRIC in ICCR
Read TRS in ICCR
Wait for one frame
and ADZ = 1?
Set MST = 0
(n-2)th-byte
ICDRF = 1?
ESTP = 1 or
ICDRF = 1?
ICDRF = 1?
Read ICDR
Read ICDR
STOP = 1?
Read ICDR
reception?
IRIC = 1?
TRS = 1?
IRIC = 1?
AAS = 1
End
Yes
No
Yes
No
No
Yes
Yes
No
Yes
Yes
No
No
No
Yes
[3] to [7] Wait for one byte to be received (slave address + R/W)
[10] Read the receive data. The first read is a dummy read.
[11] Wait for one byte to be received
[1] Select slave receive mode.
[9] Wait for ACKB setting and set acknowledge data
[12] Detect stop condition
[2] Read the receive data remaining unread.
[8] Clear IRIC
[13] Clear IRIC
* n: Address + total number of bytes received
[14] Read the last receive data
Slave transmit mode
[15] Clear IRIC
(after the rise of the 9th clock of (n-1)th byte data)
for the last reception
General call address processing
(Set IRIC at the rise of the 9th clock)
(Set IRIC at the rise of the 9th clock)
* Description omitted
Rev. 1.00, 05/04, page 325 of 544