SH7670 Datasheet, PDF (591/1292 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7670 Series

Section 15 Stream Interface (STIF)
15.3.11 STIFPCR0, STIFPCR01 Registers (STPCR0R, STPCR1R)
STPCR0R and STPCR1R are 32-bit registers that interface with the internal PCR register.
STPCR0R and STPCR1R are initialized to H'00000000 by a power-on reset. These registers
compose a 42-bit register including PCR base (33 bits) and PCR extension (9 bits). The PCR base
and PCR extension are stored in PCRB32 to PCRB0 and PCRX8 to PCRX0 respectively. Reading
or writing this 42-bit register does not cause the read/write result to be reflected directly in clock
recovery.
• STPCR0R
Initial
Bit
Bit Name Value R/W
31 to 10 
All 0 R
9 to 0 PCRB32 to All 0 R/W
PCRB23
Description
Reserved
These bits are always read as 0. The write value should
always be 0.
PCR Base
• STPCR1R
Initial
Bit
Bit Name Value R/W Description
31 to 9 PCRB22 to All 0 R/W PCR Base
PCRB0
8 to 0 PCRX8 to All 0 R/W PCR Extension
PCRX0
Note:
If PCR_PID arrives during data read, the read value is overwritten and becomes undefined.
Therefore, confirm that there is no PCR_PID during data read with the PCRF bit in STSTR.
Specifically, set the PCRF bit to 0 and then start reading the receive data. Whenever PCRF
is 1, take this procedure.
Rev. 1.00 Nov. 14, 2007 Page 565 of 1262
REJ09B0437-0100