Clock Stop Register 1 (Ckstpr1); Serial Port Control Register (Spcr) - Renesas H8 Series Hardware Manual

Section 10 Serial Communication Interface
10.2.9

Clock stop register 1 (CKSTPR1)

Bit 7

Initial value 1

Read/Write
CKSTPR1 is an 8-bit read/write register that performs module standby mode control for peripheral
modules. Only the bits relating to SCI3 are described here. For details of the other bits, see the
sections on the relevant modules.
Bit 5—SCI3 Module Standby Mode Control (S32CKSTP)
Bit 5 controls setting and clearing of module standby mode for SCI3.
S32CKSTP Description
SCI3 is set to module standby mode *
0
1 SCI3 module standby mode is cleared
Note: * All SCI3 register is initialized in module standby mode.

10.2.10 Serial Port Control Register (SPCR)

Bit 7

Initial value 1

Read/Write
SPCR is an 8-bit readable/writable register that performs RXD
inversion switching.
Bits 7 and 6—Reserved
Bits 7 and 6 are reserved; they are always read as 1 and cannot be modified.
Rev. 7.00 Mar 10, 2005 page 354 of 652
REJ09B0042-0700
6 5

S32CKSTP ADCKSTP TGCKSTP
1 1

R/W R/W
6 5

SPC32
1 0

R/W
4 3 2
TFCKSTP TCCKSTP TACKSTP
1 1 1
R/W R/W
4 3 2

SCINV3 SCINV2

0 0
W R/W R/W
and TXD
32
1 0
1 1
R/W R/W
(initial value)
1 0
 
 
W W
pin input/output data
32