Fujitsu MB90420/5 (A) Series Hardware Manual page 138

MB90420/5 (A) SERIES F
• EI
2
OS Channel select bits (ICS3 to ICS0)
2
The EI OS channel is specified using write-only bits. The set value of these bits determines the address of
2
the EI OS descriptor. The ICS bits are initialized to 0000
Table 6-5 shows the correspondence between the EI
Table 6-5 Correspondence between EI
• EI
2
OS Status bits (S1 and S0)
These are read-only bits. The operation state or termination state can be identified by comparing the value
of these bits. The bits are initialized to 00
Table 6-6 shows the relationships between the S0 and S1 bits and the EI
Table 6-6 Relationships between EI
2
MC-16LX FAMILY 16-BIT MICROCONTROLLERS HARDWARE MANUAL
ICS3 ICS2 ICS1
0 0 0
0 0 0
0 0 1
0 0 1
0 1 0
0 1 0
0 1 1
0 1 1
1 0 0
1 0 0
1 0 1
1 0 1
1 1 0
1 1 0
1 1 1
1 1 1
at a reset.
B
S1 S0
2
0 0 EI OS in operation or not started
0 1 Stop state by end of counting
1 0 Reserved
1 1 Stop state by request issued from resource
at a reset.
B
2
OS channel select bits and the descriptor addresses.
2
OS Channel Select Bits and Descriptor Addresses
Channel to be
ICS0
Selected
0 0
1 1
0 2
1 3
0 4
1 5
0 6
1 7
0 8
1 9
0 10
1 11
0 12
1 13
0 14
1 15
2
OS Status Bits and EI
2
EI OS Status
6-12
Descriptor
Address
000100
H
000108
H
000110
H
000118
H
000120
H
000128
H
000130
H
000138
H
000140
H
000148
H
000150
H
000158
H
000160
H
000168
H
000170
H
000178
H
2
OS status.
2
OS Status