參數(shù)資料
型號(hào): ISP1583BS,551
廠商: ST-ERICSSON
元件分類: 總線控制器
英文描述: UNIVERSAL SERIAL BUS CONTROLLER, PQCC64
封裝: 9 X 9 MM, 0.85 MM HEIGHT, LEAD FREE, PLASTIC, MO-220, SOT-804-1, HVQFN-64
文件頁數(shù): 51/100頁
文件大小: 508K
代理商: ISP1583BS,551
ISP1583_7
NXP B.V. 2008. All rights reserved.
Product data sheet
Rev. 07 — 22 September 2008
53 of 99
NXP Semiconductors
ISP1583
Hi-Speed USB peripheral controller
9.4.5 Task File registers (addresses: 40h to 4Fh)
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 Table 60.
The correct peripheral register is automatically addressed using pins CS1_N, CS0_N,
DA2, MODE0/DA1 and BUS_CONF/DA0 (see Table 61).
2
DREQ_POL
DREQ Polarity: Selects the DMA request polarity.
0 — DREQ is active LOW
1 — DREQ is active HIGH
1
WRITE_POL Write Polarity: Selects the DIOW strobe polarity.
0 — DIOW is active LOW
1 — DIOW is active HIGH
0
READ_POL
Read Polarity: Selects the DIOR strobe polarity.
0 — DIOR is active LOW
1 — DIOR is active HIGH
Table 59.
DMA Hardware register: bit description …continued
Bit
Symbol
Description
Table 60.
Task File register functions
Task le
ATA function
ATAPI function
1F0
data (16-bit)
1F1
error/feature
1F2
sector count
interrupt reason
1F3
sector number/LBA[7:0]
reserved
1F4
cylinder low/LBA[15:8]
cylinder low
1F5
cylinder high/LBA[23:16]
cylinder high
1F6
drive/head/LBA[27:24]
drive select
1F7
command
status/command
3F6
alternate status/command
3F7
drive address
reserved
Table 61.
ATAPI peripheral register addressing
Task le
CS1_N
CS0_N
DA2
MODE0/DA1
BUS_CONF/DA0
1F0
HIGH
LOW
1F1
HIGH
LOW
HIGH
1F2
HIGH
LOW
HIGH
LOW
1F3
HIGH
LOW
HIGH
1F4
HIGH
LOW
HIGH
LOW
1F5
HIGH
LOW
HIGH
LOW
HIGH
1F6
HIGH
LOW
HIGH
LOW
1F7
HIGH
LOW
HIGH
3F6
LOW
HIGH
LOW
3F7
LOW
HIGH
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