Input Switch Control Register (Isc) - Renesas RL78/G1P Hardware User Manual

RL78/G1P

11.3.15 Input switch control register (ISC)

The SSIE00 bit of the ISC register is used to control the SSI00 pin input when CSI00 communication and slave mode
are applied. While a high level is being input to the SSI00 pin, no transmission/reception operation is performed even if a
serial clock is input, and the SO00 pin outputs high impedance.
While a low level is being input to the SSI00 pin, a transmission/reception operation is performed according to each
mode setting if a serial clock is input.
The ISC register can be set by a 1-bit or 8-bit memory manipulation instruction.
Reset signal generation clears the ISC register to 00H.
Address: F0073H After reset: 00H
Symbol 7
ISC SSIE00
SSIE00
0
1
Caution Be sure to clear bits 6 to 0 to "0".
R01UH0895EJ0100 Rev.1.00
Nov 29, 2019
Figure 11-19. Format of Input Switch Control Register (ISC)
R/W
6 5
0 0
SSI00 input setting in CSI communication and slave mode
SSI00 pin input is invalid.
SSI00 pin input is valid.
CHAPTER 11 SERIAL ARRAY UNIT
4 3
0 0
2 1
0 0
0
0
333