H8S2110B RENESAS [Renesas Technology Corp], H8S2110B Datasheet - Page 332

• Manufacturer Part Number: H8S2110B
• Description: Renesas 16-Bit Single-Chip Microcomputer Renesas H8S Family/H8S/2100 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 13 I
Bit Bit Name
5
Rev. 2.00 Mar 21, 2006 page 294 of 518
REJ09B0299-0200
ICDRF
2
C Bus Interface (IIC)
Initial Value R/W
0
R
Description
Receive Data Read Request Flag
Indicates the ICDR (ICDRR) status in receive mode.
0: Indicates that the data has been already read from
ICDR (ICDRR) or ICDR is initialized.
1: Indicates that data has been received successfully and
transferred from ICDRS to ICDRR, and the data is ready to
be read out.
[Setting conditions]
[Clearing conditions]
When ICDRF is set due to the condition (2) above, ICDRF
is temporarily cleared to 0 when ICDR (ICDRR) is read;
however, since data is transferred from ICDRS to ICDRR
immediately, ICDRF is set to 1 again.
Note that ICDR cannot be read successfully in transmit
mode (TRS = 1) because data is not transferred from
ICDRS to ICDRR. Be sure to read data from ICDR in
receive mode (TRS = 0).
When data is received successfully and transferred
from ICDRS to ICDRR.
(1) When data is received successfully while ICDRF = 0
(2) When ICDR is read successfully in receive mode
When ICDR (ICDRR) is read.
When 0 is written to the ICE bit.
When the IIC is internally initialized using the CLR3 to
CLR0 bits in DDCSWR.
(at the rise of the 9th clock pulse).
after data was received while ICDRF = 1.