3069RF-ZTAT Datasheet, PDF (974/1003 Pages) Renesas Technology Corp – RENESAS 16-BIT SINGLE-CHIP MICROCOMPUTER

Hardware standby
External bus release
SSOE
Software standby
Reset
R
Q
D
PB₄ DDR
C
WPBD
Reset
TPC
R
TPC output
enable
PB4
Q
D
PB ₄ DR
Next data
C
WPB
Output trigger
Bus controller
Output enable
CAS output
[Legend]
WPBD: Write to PBDDR
WPB: Write to port B
RPB: Read port B
SSOE: Software standby output port enable
RPB
Note: In mode 7, CAS output enable is fixed at 0.
Figure C.11 (e) Port B Block Diagram (Pin PB₄)
Rev. 5.0, 09/04, page 952 of 978