h8s-2111b Renesas Electronics Corporation., h8s-2111b Datasheet - Page 355

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

13.4.5
In I
data, and the slave device returns an acknowledge signal.
The slave device operates as the device specified by the master device when the slave address in
the first frame following the start condition that is issued by the master device matches its own
address.
Receive Operation Using the HNDS Function (HNDS = 1):
Figure 13.17 shows the sample flowchart for the operations in slave receive mode (HNDS = 1).
(master output)
(master output)
(slave output)
User processing
2
SCL
SDA
SDA
ICDR
IRTR
C bus format slave receive mode, the master device outputs the transmit clock and transmit
IRIC
Figure 13.16 Example of Stop Condition Issuance Timing in Master Receive Mode
Data 2
Slave Receive Operation
Bit 0
8
[4] IRTR=0
[3]
Data 1
[6] IRIC clear
A
[4] IRTR=1
[7] Set ACKB=1
9
[8] Wait for one clock pulse
[3]
Bit 7
[9] Set TRS=1
1
(MLS = ACKB = 0, WAIT = 1)
[10] ICDR read (Data 2)
Bit 6
2
Bit 5
3
Data 3
[11] IRIC clear
Bit 4
Data 2
4
Bit 3
5
Bit 2
6
Bit 1
7
Bit 0
[14] IRIC clear
8
Rev. 1.00, 05/04, page 321 of 544
[13] IRTR=0
[12]
A
[15] WAIT cleared
[12]
[13] IRTR=1
to 0, IRIC clear
9
[17] Stop condition
issuance
Data 3
Stop condition generation
[16] ICDR read
(Data 3)