tspc860 ATMEL Corporation, tspc860 Datasheet - Page 13
tspc860
Manufacturer Part Number
tspc860
Description
Integrated Communication Processor
Manufacturer
ATMEL Corporation
Datasheet
1.TSPC860.pdf
(93 pages)
- Current page: 13 of 93
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Table 1. Signal Descriptions (Continued)
2129B–HIREL–12/04
BS_A(0-3)
BS_B0
BS_B1
BS_B2
BS_B3
PCWE
PCOE
Name
IOWR
IORD
WE0
WE1
WE2
WE3
Reset
High
High
High
High
High
Number
D8, C8,
A7, B8
C7
A6
B6
A5
Output
Output
Output
Output
Output
Type
Description
Write Enable 0—Output asserted when a write access to an external
slave controlled by the GPCM is initiated by the TSPC860
asserted if D(0-7) contains valid data to be stored by the slave
device.
Byte Select 0 on UPMB—Output asserted under control of the
UPMB, as programmed by the user. In a read or write transfer, the
line is only asserted if D(0-7) contains valid data.
IO Device Read—Output asserted when the TSPC860 starts a read
access to a region controlled by the PCMCIA interface. Asserted
only for accesses to a PC card I/O space.
Write Enable 1—Output asserted when the TSPC860 initiates a
write access to an external slave controlled by the GPCM. WE1 is
asserted if D(8-15) contains valid data to be stored by the slave
device.
Byte Select 1 on UPMB—Output asserted under control of the
UPMB, as programmed by the user. In a read or write transfer, the
line is only asserted if D(8-15) contains valid data.
I/O Device Write—This output is asserted when the TSPC860
initiates a write access to a region controlled by the PCMCIA
interface. IOWR is asserted only if the access is to a PC card I/O
space.
Write Enable 2—Output asserted when the TSPC860 starts a write
access to an external slave controlled by the GPCM. WE2 is
asserted if D(16-23) contains valid data to be stored by the slave
device.
Byte Select 2 on UPMB—Output asserted under control of the
UPMB, as programmed by the user. In a read or write transfer,
BS_B2 is asserted only D(16-23) contains valid data.
PCMCIA Output Enable—Output asserted when the TSPC860
initiates a read access to a memory region under the control of the
PCMCIA interface.
Write Enable 3—Output asserted when the TSPC860 initiates a
write access to an external slave controlled by the GPCM. WE3 is
asserted if D(24-31) contains valid data to be stored by the slave
device.
Byte Select 3 on UPMB—Output asserted under control of the
UPMB, as programmed by the user. In a read or write transfer,
BS_B3 is asserted only if D(24-31) contains valid data.
PCMCIA Write Enable—Output asserted when the TSPC860
initiates a write access to a memory region under control of the
PCMCIA interface.
Byte Select 0 to 3 on UPMA—Outputs asserted under requirement
of the UPMB, as programmed by the user. For read or writes,
asserted only if their corresponding data lanes contain valid data:
BS_A0 for D(0-7), BS_A1 for D(8-15),
BS_A2 for D(16-23), BS_A3 for D(24-31)
.
WE0 is
13
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