XA-SCC NXP Semiconductors, XA-SCC Datasheet - Page 11

• Manufacturer Part Number: XA-SCC
• Description: Cmos 16-bit Communications Microcontroller
• Manufacturer: NXP Semiconductors

Philips Semiconductors
Table 2. Memory Mapped Registers
1999 Feb 23
SCC0 Write Register 0
SCC0 Write Register 1
SCC0 Write Register 2
SCC0 Write Register 3
SCC0 Write Register 4
SCC0 Write Register 5
SCC0 Write Register 6
SCC0 Write Register 7
SCC0 Write Register 8
SCC0 Write Register 9
SCC0 Write Register 10
SCC0 Write Register 11
SCC0 Write Register 12
SCC0 Write Register 13
SCC0 Write Register 14
SCC0 Write Register 15
SCC0 Write Register 16
SCC0 Write Register 17
SCC0 Read Register 0
SCC0 Read Register 1
Reserved—do not write
SCC0 Read Register 3
see WR16 and 17
SCC0 Read Register 6
SCC0 Read Register 7
SCC0 Read Register 8
Reserved
SCC0 Read Register 10
Reserved
SCC1 Write Register 0
SCC1 Write Register 1
SCC1 Write Register 2
SCC1 Write Register 3
SCC1 Write Register 4
SCC1 Write Register 5
SCC1 Write Register 6
SCC1 Write Register 7
SCC1 Write Register 8
SCC1 Write Register 9
SCC1 Write Register 10
SCC1 Write Register 11
SCC1 Write Register 12
CMOS 16-bit communications microcontroller
MMR Name
Read/Write or
Read Only
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
RO
RO
RO
RO
RO
RO
RO
Size
SCCO Registers
SCC1 Registers
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
828–82Ah
836–83Eh
Address
11
Offset
80Ah
80Ch
80Eh
81Ah
81Ch
81Eh
82Ah
82Ch
82Eh
84Ah
84Ch
84Eh
800h
802h
804h
806h
808h
810h
812h
814h
816h
818h
828h
820h
822h
824h
826h
830h
832h
834h
840h
842h
844h
846h
848h
850h
852h
854h
856h
858h
Command register
Tx/Rx Interrupt & data transfer mode
Extended Features Control
Receive Parameter and Control
Tx/Rx misc. parameters & mode
Tx. parameter and control
Sync character or SDLC address field or Match
Character 0
Sync character or SDLC flag or Match Character 1
Transmit Data Buffer
Master Interrupt control
Misc. Tx/Rx control register
Clock Mode Control
Lower Byte of Baud rate time constant
Upper Byte of Baud rate time constant
Misc. Control bits
External/Status interrupt control
Match Character 2 (WR16)
Match Character 3 (WR17)
Tx/Rx buffer and external status
Receive condition status/residue code
Interrupt Pending Bits
see WR16 and WR17 above
SDLC byte count low register
SDLC byte count high & FIFO status
Receive Buffer
Loop/clock status
Command register
Tx/Rx Interrupt & data transfer mode
Extended Features Control
Receive Parameter and Control
Tx/Rx misc. parameters & mode
Tx. parameter and control
Sync character or SDLC address field or Match
Character 0
Sync character or SDLC flag or Match Character 1
Transmit Data Buffer
Master Interrupt control
Misc. Tx/Rx control register
Clock Mode Control
Lower Byte of Baud rate time constant
Description
Preliminary specification
XA-SCC
Reset
Value
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
f8h
xx
xx
xx
xx
xx
xx
xx
—
—
—
—
—
—
—
—
—
—
—
xx
xx
xx
xx
xx
xx