ISP1583BS,557 NXP Semiconductors, ISP1583BS,557 Datasheet - Page 54
ISP1583BS,557
Manufacturer Part Number
ISP1583BS,557
Description
Manufacturer
NXP Semiconductors
Datasheet
1.ISP1583BS557.pdf
(100 pages)
Specifications of ISP1583BS,557
Operating Temperature (max)
85C
Operating Temperature (min)
-40C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Lead Free Status / Rohs Status
Compliant
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ISP1583_7
Product data sheet
9.4.5 Task File registers (addresses: 40h to 4Fh)
Table 59.
These registers allow direct access to the internal registers of an ATAPI peripheral using
PIO mode. The supported Task File registers and their functions are shown in
The correct peripheral register is automatically addressed using pins CS1_N, CS0_N,
DA2, MODE0/DA1 and BUS_CONF/DA0 (see
Table 60.
Table 61.
Bit
2
1
0
Task file
1F0
1F1
1F2
1F3
1F4
1F5
1F6
1F7
3F6
3F7
Task file
1F0
1F1
1F2
1F3
1F4
1F5
1F6
1F7
3F6
3F7
Symbol
DREQ_POL
WRITE_POL Write Polarity: Selects the DIOW strobe polarity.
READ_POL
DMA Hardware register: bit description
Task File register functions
ATAPI peripheral register addressing
ATA function
data (16-bit)
error/feature
sector count
sector number/LBA[7:0]
cylinder low/LBA[15:8]
cylinder high/LBA[23:16]
drive/head/LBA[27:24]
command
alternate status/command
drive address
CS1_N
HIGH
HIGH
HIGH
HIGH
HIGH
HIGH
HIGH
HIGH
LOW
LOW
Rev. 07 — 22 September 2008
Description
DREQ Polarity: Selects the DMA request polarity.
0 — DREQ is active LOW
1 — DREQ is active HIGH
0 — DIOW is active LOW
1 — DIOW is active HIGH
Read Polarity: Selects the DIOR strobe polarity.
0 — DIOR is active LOW
1 — DIOR is active HIGH
CS0_N
LOW
LOW
LOW
LOW
LOW
LOW
LOW
LOW
HIGH
HIGH
Table
DA2
LOW
LOW
LOW
LOW
HIGH
HIGH
HIGH
HIGH
HIGH
HIGH
…continued
Hi-Speed USB peripheral controller
61).
ATAPI function
data (16-bit)
error/feature
interrupt reason
reserved
cylinder low
cylinder high
drive select
status/command
alternate status/command
reserved
MODE0/DA1
LOW
LOW
HIGH
HIGH
LOW
LOW
HIGH
HIGH
HIGH
HIGH
BUS_CONF/DA0
LOW
HIGH
LOW
HIGH
LOW
HIGH
LOW
HIGH
LOW
HIGH
© NXP B.V. 2008. All rights reserved.
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