r5f71374an80fpv Renesas Electronics Corporation., r5f71374an80fpv Datasheet - Page 665

• Manufacturer Part Number: r5f71374an80fpv
• Description: 32-bit Risc Microcomputer Superh?? Risc Engine Family
• Manufacturer: Renesas Electronics Corporation.

15.6
15.6.1
The SSU operation can be disabled or enabled using the standby control register. The initial
setting is for SSU operation to be halted. Access to registers is enabled by clearing module
standby mode. For details, refer to section 24, Power-Down Modes
15.6.2
Do not access SSTDR and SSRDR registers not validated by the setting of the DATS bits of the
SSCRL register. If accessed, transmission or reception thereafter may not be performed normally.
15.6.3
During continuous transmission/reception in SSU slave mode, negate the SCS pin (high level) for
every frame. If the SCS pin is kept asserted (low level) for more than one frame, transmission or
reception cannot be performed correctly.
Usage Notes
Module Standby Mode Setting
Access to SSTDR and SSRDR Registers
Continuous Transmission/Reception in SSU Slave Mode
Section 15 Synchronous Serial Communication Unit (SSU)
Rev. 1.00 Sep. 21, 2007 Page 639 of 1124
REJ09B0402-0100