
TMS320C6203B, TMS320C6203C
FIXEDPOINT DIGITAL SIGNAL PROCESSORS
SPRS086G – JANUARY 1999 – REVISED JANUARY 2002
14
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251–1443
peripheral register descriptions (continued)
Table 5. Expansion Bus (XBUS) Registers
HEX ADDRESS RANGE
ACRONYM
REGISTER NAME
COMMENTS
0188 0000
XBGC
Expansion bus global control register
0188 0004
XCECTL1
XCE1 space control register
Corresponds to XBus XCE0
memory space:
[4000 0000 – 4FFF FFFF]
0188 0008
XCECTL0
XCE0 space control register
Corresponds to XBus XCE1
memory space:
[5000 0000 – 5FFF FFFF]
0188 000C
XBHC
Expansion bus host port interface control register
DSP read/write access only
0188 0010
XCECTL2
XCE2 space control register
Corresponds to XBus XCE2
memory space:
[6000 0000 – 6FFF FFFF]
0188 0014
XCECTL3
XCE3 space control register
Corresponds to XBus XCE3
memory space:
[7000 0000 – 7FFF FFFF]
0188 0018
–
Reserved
0188 001C
–
Reserved
0188 0020
XBIMA
Expansion bus internal master address register
DSP read/write access only
0188 0024
XBEA
Expansion bus external address register
DSP read/write access only
0188 0028 – 018B FFFF
–
Reserved
–
XBISA
Expansion bus internal slave address
–
XBD
Expansion bus data
Table 6. Interrupt Selector Registers
HEX ADDRESS RANGE
ACRONYM
REGISTER NAME
COMMENTS
019C 0000
MUXH
Interrupt multiplexer high
Selects which interrupts drive CPU
interrupts 10–15 (INT10–INT15)
019C 0004
MUXL
Interrupt multiplexer low
Selects which interrupts drive CPU
interrupts 4–9 (INT04–INT09)
019C 0008
EXTPOL
External interrupt polarity
Sets the polarity of the external
interrupts (EXT_INT4–EXT_INT7)
019C 000C – 019C 01FF
–
Reserved
019C 0200
PDCTL
Peripheral power-down control register
019C 0204 – 019F FFFF
–
Reserved
Table 7. Peripheral Power-Down Control Register
HEX ADDRESS RANGE
ACRONYM
REGISTER NAME
019C 0200
PDCTL
Peripheral power-down control register
PRODUCT
PREVIEW