r5f71374an80fpv Renesas Electronics Corporation., r5f71374an80fpv Datasheet - Page 648

• Manufacturer Part Number: r5f71374an80fpv
• Description: 32-bit Risc Microcomputer Superh?? Risc Engine Family
• Manufacturer: Renesas Electronics Corporation.

Section 15 Synchronous Serial Communication Unit (SSU)
Rev. 1.00 Sep. 21, 2007 Page 622 of 1124
REJ09B0402-0100
[1]
[2]
[3]
[4]
[5]
[6]
Specify bits MLS, CPOS, CPHS, CKS2,
Set PFC for external pins to be used
Specify bits TE, RE, TEIE, TIE, RIE,
Clear TE and RE bits in SSER to 0
Clear SSUMS in SSCRH to 0 and
Specify bits TENDSTS, SCSATS,
and CEIE in SSER simultaneously
Specify MSS, BIDE, SOL, CSS1,
specify bits DATS1 and DATS0
(SSCK, SSI, SSO, and SCS)
CKS1, and CKS0 in SSMR
and CSS0 bits in SSCRH
Start setting initial values
and SSODTS in SSCR2
End
Figure 15.4 Example of Initial Settings in SSU Mode
[1] Make appropriate settings in the PFC for the external pins to be used.
[2] Specify master/slave mode selection, bidirectional mode enable,
[3] Selects SSU mode and specify transmit/receive data length.
[4] Specify MSB first/LSB first selection, clock polarity selection,
[5] Specify timing of TEND bit setting, SCS pin assertion, and data
[6] Enables/disables interrupt requests to the CPU.
SSO pin output value selection, SSCK pin selection, and SCS pin
selection.
clock phase selection, and transfer clock rate selection.
output on the SSO pin.