h8s-2628 Renesas Electronics Corporation., h8s-2628 Datasheet - Page 469

• Manufacturer Part Number: h8s-2628
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
• Manufacturer: Renesas Electronics Corporation.

16.3.3
SSMR selects the MSB first/LSB first, clock phase, clock polarity, and clock rate of synchronous
serial communication.
Bit
7
6
5
4, 3
2
1
0
Bit Name
MLS
CPOS
CPHS
CKS2
CKS1
CKS0
SS Mode Register (SSMR)
Initial Value
0
0
0
All 0
0
0
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Section 16 Synchronous Serial Communication Unit (SSU)
Description
MSB First/LSB First
Selects the serial data is transmitted in MSB first
or LSB first.
0: LSB first
1: MSB first
Clock Polarity Selection
Selects SSCK clock polarity.
0: High output in idle mode, and low output in
1: Low output in idle mode, and high output in
Clock Phase Selection
Selects SSCK clock phase.
0: Data changes at the first edge
1: Data is latched at the first edge
Reserved
The write value should always be 0.
Transfer Clock Rate Selection
Select the transfer clock rate (prescaler division
rate) when a master mode is selected.
000: /2
001: /4
010: /8
011: /16
100: /32
101: /64
110: /128
111: /256
active mode
active mode
Rev. 3.00 Oct 04, 2005 page 429 of 598
REJ09B0155-0300