Rev. 3.0, 09/98, page 124 of 361
RP9
Reset
Reset
WP9
WP9D
R
R
Q
Q
D
D
P9n DR
P9n DDR
C
C
WP9D:
WP9:
RP9:
n = 3, 4, 5
Write Port 9 DDR
Write Port 9
Read Port 9
RD output
WR output
AS ouput
P9 n
Hardware standby
Mode 1 or 2
Mode 3
Mode 1 or 2
Internal data bus
Figure 6.9 (c) Port 9 Schematic Diagram (Pins P9
3
, P9
4
, and P9
5
)
