h8s-2111b Renesas Electronics Corporation., h8s-2111b Datasheet - Page 334
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h8s-2111b
Manufacturer Part Number
h8s-2111b
Description
Renesas 16-bit Single-chip Microcomputer H8s Family / H8s/2100 Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.H8S-2111B.pdf
(582 pages)
- Current page: 334 of 582
- Download datasheet (4Mb)
Note:
Rev. 1.00, 05/04, page 300 of 544
Bit
0
*
Bit Name
ACKB
Only 0 can be written to clear the flag.
Initial
Value
0
R/W
R/W
Description
Acknowledge Bit
Stores acknowledge data.
Transmit mode:
[Setting condition]
When 1 is received as the acknowledge bit when ACKE
= 1 in transmit mode
[Clearing conditions]
•
•
Receive mode:
0: Returns 0 as acknowledge data after data reception
1: Returns 1 as acknowledge data after data reception
When this bit is read, the value loaded from the bus line
(returned by the receiving device) is read in
transmission (when TRS = 1). In reception (when TRS
= 0), the value set by internal software is read.
When this bit is written, acknowledge data that is
returned after receiving is rewritten regardless of the
TRS value. If bit in ICSR is written using bit-
manipulation instructions, the acknowledge data should
be re-set since the acknowledge data setting is
rewritten by the ACKB bit reading value.
Write the ACKE bit to 0 to clear the ACKB flag to 0,
before transmission is ended and a stop condition is
issued in master mode, or before transmission is ended
and SDA is released to issue a stop condition by a
master device.
When 0 is received as the acknowledge bit when
ACKE = 1 in transmit mode
When 0 is written to the ACKE bit
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