CY7C68310 Datasheet, PDF (29/34 Pages) Cypress Semiconductor – ISD-300LP™ Low-Power USB 2.0 to ATA/ATAPI Bridge IC

CY7C68310
Table 9-2. Bit-wise Mapping of LOAD_MFG_DATA Test Data
Byte
0
0
0
Bit(s)
0
1
2
Test/High-Z Control Register Name
LOWPWR
Reserved – Value will not affect output
nPWR500
0
3
nATARST
0
4
nDIOW
0
5
nDIOR
0
6
nDMACK
0
7
ATAPUEN
1
0
Reserved – Value will not affect output
1
2:1
nCS[1:0]
1
5:3
DA[2:0]
1
6
SCL
1
7
DD_EN – ‘1’ = Enable output (set for writes), ‘0’ = high-Z DD[15:0] (set for reads)
2
7:0
DD[7:0]
3
7:0
DD[15:8]
4
2:0
GPIO[2:0]
4
3
Reserved – Value will not affect output
4
6:4
GPIO_EN[2:0] – ‘1’ = Enable output (set for writes), ‘1’ = high-Z GPIO[2:0] (set for reads)
4
7
Reserved – Value will not affect output
5
7:0
Reserved – Value will not affect output
9.2 READ_MFG_DATA
This USB request returns a “snapshot in time” of selected input
pins. The input pin states are bit-wise mapped to the USB data
packed associated with this request. CY7C68310 input pins
not associated directly with USB operation can be sampled at
any time during normal or Manufacturing Test Mode operation.
This request is independent of normal CY7C68310 state
machine control or Manufacturing Test Mode write operations.
Table 9-3. READ_MFG_DATA Command Format
Label
bmRequestType bRequest
READ_MFG_DATA
0xC0
0x06
wValue
0x00
wIndex
0x00
wLength
Data
Data Length Mfg. Test Data
Legal values for wValue are as follows:
•0x0000wValue must be set to 0x0000.
Legal values for wLength are as follows:
• 0x0001–0x0008 Any wLength value greater than 0x0008
will result in a STALL response.
Document 38-08030 Rev. *H
Page 29 of 34