Toshiba TLCS-900/L1 Series Manual page 70

3.5.6 Port 8 (P80 to P87)
Port 8 is an 8-bit input port and can also be used as the analog input pins for the
internal AD converter. P83 can also be used as ADTRG pin for the AD converter.
ADTRG
(for P83 only)
7
P8
Bit symbol P87
(0018H)
Read/Write
After reset
Note: The input channel selection of AD converter and the permission of ADTRG input are set by
AD converter mode register ADMOD1.
Port 8 read
Conversion
AD
result
converter
register
AD read
Figure 3.5.13 Port 8
Port 8 Register
6 5 4
P86 P85 P84
Data from external port
Figure 3.5.14 Register for Port 8
91C824-68
Port 8
P80 to P87
(AN0 to AN7)
Channel
selector
3 2 1
P83 P82 P81
R
TMP91C824
0
P80
2008-02-20