SST58LD016 Просмотр технического описания (PDF) - Silicon Storage Technology
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SST58LD016 Datasheet PDF : 40 Pages
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ATA-Disk Chip
SST58SD008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192
SST58LD008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192
Data Sheet
3.0 SOFTWARE INTERFACE
3.1 ATA-Disk Chip Drive Register Set Definitions and Protocol
3.1.1 ATA-Disk Chip Addressing
The I/O decoding for an ADC is as follows:
TABLE 3-1: TASK REGISTERS
CS3FX#
1
1
1
1
1
1
1
1
0
0
CS1FX#
0
0
0
0
0
0
0
0
1
1
A2 A1 A0 IORD# = 0
0
0
0 RD Data
0
0
1 Error Register
0
1
0 Sector Count
0
1
1 Sector No.
1
0
0 Cylinder Low
1
0
1 Cylinder High
1
1
0 Select Card/Head
1
1
1 Status
1
1
0 Alt Status
1
1
1 Drive Address
IOWR# = 0
WR Data
Features
Sector Count
Sector No.
Cylinder Low
Cylinder High
Select Card/Head
Command
Device Control
Reserved
T3-1.0 391
3.1.2 ATA-Disk Chip Registers
The following section describes the hardware registers used by the host software to issue commands to the ADC.
These registers are often collectively referred to as the “Task File Registers.”
3.1.2.1 Data Register
This 16-bit register is used to transfer data blocks between the device data buffer and the host. It is also the register
through which sector information is transferred on a Format Track command. Data transfer can be performed in
PIO mode.
3.1.2.2 Error Register (Read Only)
This register contains additional information about the source of an error when an error is indicated in bit 0 of the
Status register. The bits are defined as follows:
D7
D6
D5
D4
D3
D2
D1
D0
BBK
UNC
0
IDNF
0
ABRT
0
AMNF
Bit 7 (BBK) This bit is set when a Bad Block is detected.
Bit 6 (UNC) This bit is set when an Uncorrectable Error is encountered.
Bit 5
This bit is 0.
Bit 4 (IDNF) The requested sector ID is in error or cannot be found.
Bit 3
This bit is 0.
Bit 2 (Abort) This bit is set if the command has been aborted because of an ADC status condition:
(Not Ready, Write Fault, etc.) or when an invalid command has been issued.
Bit 1
This bit is 0.
Bit 0 (AMNF) This bit is set in case of a general error.
©2001 Silicon Storage Technology, Inc.
15
S71167-05-000 9/01 391
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