HD6433044 Datasheet, PDF (848/867 Pages) Hitachi Semiconductor – Hitachi Single-Chip Microcomputer

C.10 Port A Block Diagrams
PA _n
Reset
R
Q
D
PA_n DDR
C
WPAD
Reset
R
Q
D
PA_n DR
C
WPA
TPC
TPC
output
enable
Next data
Output
trigger
DMA controller
Output
enable
Transfer
end output
RPA
WPAD: Write to PADDR
WPA: Write to port A
RPA: Read port A
n = 0 and 1
Figure C-10 (a) Port A Block Diagram (Pins PA₀, PA₁)
ITU
Counter
clock input
841