HD64336901G Renesas Technology, HD64336901G Datasheet - Page 263

• Manufacturer Part Number: HD64336901G
• Description: (HD64xxx Series) 16-BIT MICROCONTROLLER
• Manufacturer: Renesas Technology

Bit Bit Name
5
4
3
2
RDRF
NACKF
STOP
AL/OVE
Initial Value R/W Description
0
0
0
0
R/W Receive Data Register Full
R/W No Acknowledge Detection Flag
R/W Stop Condition Detection Flag
R/W Arbitration Lost Flag/Overrun Error Flag
[Setting condition]
[Clearing conditions]
[Setting condition]
[Clearing condition]
[Setting condition]
[Clearing condition]
This flag indicates that arbitration was lost in master mode
with the I
received while RDRF = 1 with the clocked synchronous
format.
When two or more master devices attempt to seize the bus
at nearly the same time, if the I
differing from the data it sent, it sets AL to 1 to indicate that
the bus has been taken by another master.
[Setting conditions]
[Clearing condition]
When a receive data is transferred from ICDRS to ICDRR
When 0 is written in RDRF after reading RDRF = 1
When ICDRR is read with an instruction
When no acknowledge is detected from the receive
device in transmission while the ACKE bit in ICIER is 1
When 0 is written in NACKF after reading NACKF = 1
When a stop condition is detected after frame transfer
When 0 is written in STOP after reading STOP = 1
If the internal SDA and SDA pin disagree at the rise of
SCL in master transmit mode
When the SDA pin outputs high in master mode while a
start condition is detected
When the final bit is received with the clocked
synchronous format while RDRF = 1
When 0 is written in AL/OVE after reading AL/OVE=1
2
C bus format and that the final bit has been
Rev. 1.00, 11/03, page 235 of 376
2
C bus interface detects data