mk68564 STMicroelectronics, mk68564 Datasheet - Page 8
mk68564
Manufacturer Part Number
mk68564
Description
Serial Input Output
Manufacturer
STMicroelectronics
Datasheet
1.MK68564.pdf
(46 pages)
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SIO INTERNAL REGISTERS
The MK68564 SIO has 25 internal registers. Each channel has ten R/W registers and two read only registers
associated with it. The vector register may be accessed through either channel.
Table 1 : Register Map.
Notes : 1. Not Used, Read as ”FFH”.
8/46
5
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
4
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
Address
2. Only One Vector Register, Accessible through Either Channel.
3
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
2
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Abbreviation
MODECTL
MODECTL
CMDREG
CMDREG
XMTCTL
DATARG
BRGCTL
VECTRG
XMTCTL
DATARG
BRGCTL
VECTRG
RCVCTL
RCVCTL
SYNC 1
SYNC 2
SYNC 1
SYNC 2
INTCTL
STAT 0
STAT 1
TCREG
INTCTL
STAT 0
STAT 1
TCREG
Channel
A/B
A/B
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
Command Register
Mode Control Register
Interrupt Control Register
Sync Word Register 1
Sync Word Register 2
Receiver Control Register
Transmitter Control Register
Status Register 0
Status Register 1
Data Register
Time Constant Register
Baud Rate Generator Control Reg
Interrupt Vector Register (note 2)
(note 1)
(note 1)
(note 1)
Command Register
Mode Control Register
Interrupt Control Register
Sync Word Register 1
Sync Word Register 2
Receiver Control Register
Transmitter Control Register
Status Register 0
Status Register 1
Data Register
Time Constant Register
Baud Rate Generator Control Reg
Interrupt Vector Register (note 2)
(note 1)
(note 1)
(note 1)
Register Name
Read/
write
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Access
Read
Only
X
X
X
X