FUJITSU Semiconductor Controller MB89950/950A User Manual
Page 302
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288
APPENDIX
Table C-2 Recommended port/segment mask option combinations
Number of
segments
Number of
I/O ports
(*1)
Mask Options
P00/SEG20
to
P07/SEG27
P10/SEG28
to
P13/SEG31
P14/SEG32
to
P15/SEG33
P16/SEG34 P17/SEG35
P20/SEG36
to
P23/SEG39
P24/SEG40
to
P25/SEG41
42
11
X
X
X
X
X
X
X
41
12
X
X
X
X
O
X
X
40
13
X
X
X
O
O
X
X
38
15
X
X
O
O
O
X
X
34
19
X
O
O
O
O
X
X
26
27
O
O
O
O
O
X
X
40
13
X
X
X
X
X
X
O
22
31
O
O
O
O
O
O
X
20
33
O
O
O
O
O
O
O
X: Mask option is selected for LCD segment outputs
O: Mask option is selected for port outputs
*1: This column of numbers assume that all the multiplexed peripherals are disabled.
If any customer wants to choose the mask option combination which is not shown in Table C-2 "Recommended port/segment
mask option combinations", please inform Fujitsu for special testing arrangement.
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