Datasheet

Section 16 Synchronous Serial Communication Unit (SSU)
Rev. 4.00 Mar. 15, 2006 Page 350 of 556
REJ09B0026-0400
16.3 Register Descriptions
The SSU has the following registers.
• SS control register H (SSCRH)
• SS control register L (SSCRL)
• SS mode register (SSMR)
• SS enable register (SSER)
• SS status register (SSSR)
• SS receive data register (SSRDR)
• SS transmit data register (SSTDR)
• SS shift register (SSTRSR)
SSMR
SSCRL
SSCRH
SSER
SSSR
SSTDR
Internal data bus
SSO
SCS
SSCK
Multiplexer
Transmission/
reception
control circuit
Internal clock
SSI
SSTRSR
SSRDR
Interrupt request
(TXI, TEI, RXI, OEI, CEI)
SSCRL:
SSCRH:
SSER:
SSSR:
SSTDR:
SSTRSR:
SSRDR:
SS control register L
SS control register H
SS enable register
SS status register
SS transmit data register
SS shift register
SS receive data register
Selector
[Legend]
Figure 16.1 Block Diagram of SSU