
Z8018x
Family MPU User Manual
294
UM005003-0703
ASCI Control Register B
Channel 0:
CNTLB0 0 2
ASCI Control Register B
Channel 1:
CNTLB1 0 3
Table 57. Internal I/O Registers (Continued)
Register Mnemonics Address Remarks
MPBT
MP
CTS
/
PS
PEO
DR
SS2
SS1
SS0
bit
during RESET
R/W
00
0
*
1
1
1
R/W R/W R/W R/W R/W R/W R/W R/W
Clock Source and
Speed Select
Divide Ratio
Parity Even or Odd
Clear to send/Prescale
Multi Processor
Multi Processor Bit Transmit
* CTS: Depending on the condition 0f CTS Pin.
PS: Cleared to 0.
invalid
MPBT MP
CTS
/
PEO DR SS2 SS1 SS0
R/W R/WR/W R/W R/W R/W R/W R/W
Clock Source and
Divide Ratio
Clear to Send/Prescale
Multi Processor
Multi Processor Bit Transmit
0invalid 000 111
bit
during RESET
R/W
PS
Speed Select
Parity Even or Odd
General
divide ratio
PS=0
(divide ratio=10)
PS=1
(divide ratio=30)
SS2 1 0
0 0 0
0 0 1
0 1 0
0 1 1
1 0 0
1 0 1
1 1 0
1 1 1
f
¸
160
¸
¸
¸
¸
¸
¸
f
¸
¸
¸
¸
¸
¸
¸
320
10240
5120
2560
1280
640
f
¸
640
¸
¸
¸
¸
¸
¸
1280
2560
5120
10240
20480
40960
f
¸
480
¸
¸
¸
¸
¸
¸
960
1920
3840
7680
15360
30720
1920
3840
7680
15360
30720
61440
122880
External clock (frequency <
f
¸
40)
DR=0 (X 16) DR=1 (X 64) DR=0 (X 16) DR=1 (X 64)
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