r5f21346mnfp Renesas Electronics Corporation., r5f21346mnfp Datasheet - Page 240

• Manufacturer Part Number: r5f21346mnfp
• Description: Single-chip Mcus Incorporates The R8c Cpu Core
• Manufacturer: Renesas Electronics Corporation.

R8C/34M Group
R01UH0131EJ0100 Rev.1.00
Jun 21, 2011
15.3.10.4 SSU/I
15.3.10.5 SSU/I
When the DTC activation source is SSU/I
using a data transfer. The RDRF bit in the SSSR register/the ICSR register is set to 0 (no data in
SSRDR/ICDRR register) by reading the SSRDR register/ the ICDRR register. If an interrupt source for receive
data full is subsequently generated, the DTC acknowledges it as the activation source.
When the DTC activation source is SSU/I
register using a data transfer. The TDRE bit in the SSSR register/the ICSR register is set to 0 (data is not
transferred from registers SSTDR/ICDRT to SSTRSR/ICDRS) by writing to the SSTDR register/the ICDRT
register. If an interrupt source for transmit data empty is subsequently generated, the DTC acknowledges it as
the activation source.
2
2
C bus Receive Data Full
C bus Transmit Data Empty
2
2
C bus receive data full, read the SSRDR register/the ICDRR register
C bus transmit data empty, write to the SSTDR register/the ICDRT
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15. DTC