SH7203 Datasheet, PDF (1407/1686 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7200 Series

Section 26 I/O Ports
26.7.1 Register Descriptions
Table 26.11 lists the port F register.
Table 26.11 Register Configuration
Register Name
Abbreviation R/W Initial Value Address
Access Size
Port F data register H PFDRH
R/W H'0000
H'FFFE3A80 8, 16, 32
Port F data register L PFDRL
R/W H'0000
H'FFFE3A82 8, 16
Port F port register H PFPRH
R
H'xxxx
H'FFFE3A9C 8, 16, 32
Port F port register L PFPRL
R
H'xxxx
H'FFFE3A9E 8, 16
26.7.2 Port F Data Registers H and L (PFDRH, PFDRL)
PFDRH and PFDRL are 16-bit readable/writable registers that store port F data. The PF30DR to
PF0DR bits correspond to the PF30/AUDIO_CLK to PF0/TCLKA/LCD_DATA0/SSCK0 pins,
respectively.
When a pin function is general output, if a value is written to PEDRH or PEDRL, that value is
output directly from the pin, and if PEDRH or PEDRL is read, the register value is returned
directly regardless of the pin state.
When a pin function is general input, if PEDRH or PEDRL is read, the pin state, not the register
value, is returned directly. If a value is written to PEDRH or PEDRL, although that value is
written into PEDRH or PEDRL, it does not affect the pin state. Table 26.12 summarizes
PFDRH/PFDRL read/write operation.
Rev. 2.00 Apr. 16, 2008 Page 1377 of 1652
REJ09B0313-0200