h8s-2628 Renesas Electronics Corporation., h8s-2628 Datasheet - Page 466

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

Section 16 Synchronous Serial Communication Unit (SSU)
16.3.1
SSCRH specifies master/slave device selection, bidirectional mode enable, SSO pin output value
selection, SSCK pin selection, and
Rev. 3.00 Oct 04, 2005 page 426 of 598
REJ09B0155-0300
Bit
7
6
5
4
Bit Name
MSS
BIDE
SOL
SS Control Register H (SSCRH)
Initial Value
0
0
0
0
S C S
R/W
R/W
R/W
R/W
pin selection.
Description
Master/Slave Device Selection
Selects that this module is used in master mode
or slave mode. When master mode is selected,
transfer clocks are output from the SSCK pin.
When the CE bit in SSSR is set, this bit is
automatically cleared.
0: Slave mode is selected
1: Master mode is selected
Bidirectional Mode Enable
Selects that both serial data input pin and output
pin are used or one of them is used. However,
transmission and reception are not performed
simultaneously when bidirectional mode is
selected. For details, section 16.4.3, Relationship
between Data I/O Pins and Shift Register.
0: Standard mode (two pins are used as data
1: Bidirectional mode (one pin is used for data
Reserved
The write value should always be 0.
Serial Data Output Value Selection
The output level of serial data, which retains that
of the last bit, can be modified by operating this bit
before or after transmission. When modifying the
output level, use the MOV instruction after
clearing the SOLP bit to 0. Since writing to this bit
during data transmission causes malfunctions,
this bit should not be modified.
0: Serial data output is modified to low level
1: Serial data output is modified to high level
input and output)
input and output)