5.3 PROM Option Settings
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Chapter 5: MB90P663A Specifications
5.3 PROM Option Settings
PROM option writing is performed in the same way as PROM writing, by writing values to designated
addresses on the memory map. The following bit map shows the relation between each bit and option
setting.
PROM Option Bit Map
*AU bits have the initial value (when blank) of ‘l.’
Note 1:
In the MB90660A series, all pins for which pull-up options are selected are cut off from pull-up
resistance in stop mode. (These correspond to circuit type B and E in the “Pin Function
Description.”) Note however that pins P44 to P47, RSTX,
D’ITI (corresponding to circuit types D, G in the “Pin Function Description.”) and pins MD1,
MD0 are not cut off from pull-up resistance in stop mode.
Note 2:
The following table shows the use of pun-up/down resistance with pins MD2, MD1, MD0. Pull-
up/down resistance selections apply to all of the two (or three) pins in this set.
Pull-up/down resistance cannot be selected separately for the mode pins MD2, MD1, MD0.
Bit
7
6
5
4
3
2
1
0
00004H
P07
Pull-up
1 :None
0 :Yes
P06
Pull-up
1 :None
0 :Yes
P05
Pull-up
1 :None
0 :Yes
P04
Pull-up
1 :None
0 :Yes
P03
Pull-up
1 :None
0 :Yes
P02
Pull-up
1 :None
0 :Yes
P01
Pull-up
1 :None
0 :Yes
P00
Pull-up
1 :None
0 :Yes
00008H
P17
Pull-up
1 :None
0 :Yes
P16
Pull-up
1 :None
0 :Yes
P15
Pull-up
1 :None
0 :Yes
P14
Pull-up
1 :None
0 :Yes
P13
Pull-up
1 :None
0 :Yes
P12
Pull-up
1 :None
0 :Yes
P11
Pull-up
1 :None
0 :Yes
P10
Pull-up
1 :None
0 :Yes
0000CH
P27
Pull-up
1 :None
0 :Yes
P26
Pull-up
1 :None
0 :Yes
P25
Pull-up
1 :None
0 :Yes
P24
Pull-up
1 :None
0 :Yes
P23
Pull-up
1 :None
0 :Yes
P22
Pull-up
1 :None
0 :Yes
P21
Pull-up
1 :None
0 :Yes
P20
Pull-up
1 :None
0 :Yes
00010H
P43
Pull-up
1 :None
0 :Yes
P42
Pull-up
1 :None
0 :Yes
P41
Pull-up
1 :None
0 :Yes
P40
Pull-up
1 :None
0 :Yes
P33
Pull-up
1 :None
0 :Yes
P32
Pull-up
1 :None
0 :Yes
P31
Pull-up
1 :None
0 :Yes
P30
Pull-up
1 :None
0 :Yes
00014H
Note 1
P47
Pull-up
1 :None
0 :Yes
P46
Pull-up
1 :None
0 :Yes
P45
Pull-up
1 :None
0 :Yes
P44
Pull-up
1 :None
0 :Yes
RSTX
Pull-up
1 :None
0 :Yes
DTTI
Pull-up
1 :None
0 :Yes
Asynchronous
receiving of
reset signal.
Pull-up
1 :None
0 :Yes
MD1/
MD0
Pull-up
1 :None
0 :Yes
00018H
Empty
P66
Pull-up
1 :None
0 :Yes
P65
Pull-up
1 :None
0 :Yes
P64
Pull-up
1 :None
0 :Yes
P63
Pull-up
1 :None
0 :Yes
P62
Pull-up
1 :None
0 :Yes
P61
Pull-up
1 :None
0 :Yes
P60
Pull-up
1 :None
0 :Yes