r5f71374an80fpv Renesas Electronics Corporation., r5f71374an80fpv Datasheet - Page 692
r5f71374an80fpv
Manufacturer Part Number
r5f71374an80fpv
Description
32-bit Risc Microcomputer Superh?? Risc Engine Family
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.R5F71374AN80FPV.pdf
(1154 pages)
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Section 16 I
16.4.4
In slave transmit mode, the slave device outputs the transmit data, while the master device outputs
the receive clock and returns an acknowledge signal. For slave transmit mode operation timing,
refer to figures 16.9 and 16.10.
The transmission procedure and operations in slave transmit mode are described below.
1. Set the ICE bit in ICCR1 to 1. Set the MLS bit in ICMR and bits CKS3 to CKS0 in ICCR1.
2. When the slave address matches in the first frame following detection of the start condition,
3. If TDRE is set after writing last transmit data to ICDRT, wait until TEND in ICSR is set to 1,
4. Clear TRS for the end processing, and read ICDRR (dummy read). SCL is free.
5. Clear TDRE.
Rev. 1.00 Sep. 21, 2007 Page 666 of 1124
REJ09B0402-0100
(Initial setting) Set the MST and TRS bits in ICCR1 to select slave receive mode, and wait
until the slave address matches.
the slave device outputs the level specified by ACKBT in ICIER to SDA, at the rise of the 9th
clock pulse. At this time, if the 8th bit data (R/W) is 1, the TRS bit in ICCR1 and the TDRE bit
in ICSR are set to 1, and the mode changes to slave transmit mode automatically. The
continuous transmission is performed by writing transmit data to ICDRT every time TDRE is
set.
with TDRE = 1. When TEND is set, clear TEND.
Slave Transmit Operation
2
C Bus Interface 2 (I
2
C2)
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