Toshiba H1 Series - Manual (Page 124)

TMP92CZ26A
92CZ26A-121
3.7.3 Port 5 (P50 to P57)
Port5 is an 8-bit general-purpose Output ports. In addition to functioning as a
general-purpose I/O port, port5 can also function as an address bus (A8 to A15). Each bit
can be set individually for function. Setting the AM1 and AM0 pins as shown below and
resetting the device initialize port 5 to the following function pins:
AM1 AM0 Function Setting after reset is released
0
0
1
1 0
1
0
1 Don’t use this setting
Address bus (A8 ~ A15)
Don’t use this setting
Output port (P50 ~ P57)
Figure 3.7.5 Port5
P5FC Register
P5 Register
S
0
1
Selector
A8 to A15
Read data
P50 to P57
(A8 to A15)