h8s-2111b Renesas Electronics Corporation., h8s-2111b Datasheet - Page 331

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

13.3.6
ICSR consists of status flags. Also see tables 13.4 and 13.5.
Bit
7
6
5
Bit Name
ESTP
STOP
IRTR
I
2
C Bus Status Register (ICSR)
Initial
Value
0
0
0
R/W
R/(W)*
R/(W)*
R/(W)*
Description
Error Stop Condition Detection Flag
This bit is valid in I
[Setting condition]
When a stop condition is detected during frame
transfer.
[Clearing conditions]
•
•
Normal Stop Condition Detection Flag
This bit is valid in I
[Setting condition]
When a stop condition is detected after frame transfer
completion.
[Clearing conditions]
•
•
I
Request Flag
Indicates that the I
interrupt request to the CPU, and the source is
completion of reception/transmission of one frame in
continuous transmission/reception. When the IRTR flag
is set to 1, the IRIC flag is also set to 1 at the same
time.
[Setting conditions]
I
•
Master mode or clocked synchronous serial format
mode with I
•
[Clearing conditions]
•
•
2
2
C Bus Interface Continuous Transfer Interrupt
C bus format slave mode:
When 0 is written in ESTP after reading ESTP = 1
When the IRIC flag in ICCR is cleared to 0
When 0 is written in STOP after reading STOP = 1
When the IRIC flag is cleared to 0
When the ICDRE or ICDRF flag in ICDR is set to 1
when AASX = 1
When the ICDRE or ICDRF flag is set to 1
When 0 is written after reading IRTR = 1
When the IRIC flag is cleared to 0 while ICE is 1
2
C bus format:
2
2
2
C bus format slave mode.
C bus format slave mode.
C bus interface has issued an
Rev. 1.00, 05/04, page 297 of 544