CY7C68320C-100AXA Cypress Semiconductor Corp, CY7C68320C-100AXA Datasheet - Page 18

• Manufacturer Part Number: CY7C68320C-100AXA
• Description: CY7C68320C-100AXA
• Manufacturer: Cypress Semiconductor Corp
• Series: EZ-USB AT2LP™r

Specifications of CY7C68320C-100AXA

• Controller Type: USB 2.0 Controller
• Interface: I²C
• Voltage - Supply: 3 V ~ 3.6 V
• Current - Supply: 50mA
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 100-LQFP
• Package: 100TQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 428-3035

Table 6. ATACB Field Descriptions (continued)
Document Number: 001-05809 Rev. *H
13–15
5–12
Byte
3
4
bmATACBRegisterSelect
bATACBTransferBlockCount
bATACBTaskFileWriteData
Reserved
Field Name
This field controls which of the TaskFile register read or write accesses occur.
TaskFile read data is always 8 bytes in length, and unselected register data
are returned as 0x00. Register accesses occur in sequential order as outlined
here (0 to 7):
Bit 0 (0x3F6) Device Control/Alternate Status
Bit 1 (0x1F1) Features/Error
Bit 2 (0x1F2) Sector Count
Bit 3 (0x1F3) Sector Number
Bit 4 (0x1F4) Cylinder Low
Bit 5 (0x1F5) Cylinder High
Bit 6 (0x1F6) Device/Head
Bit 7 (0x1F7) Command/Status
This value indicates the maximum requested block size be in 512-byte
increments. This value must be set to the last value used for the ’Sectors per
block’ in the SET_MULTIPLE_MODE command. Legal values are 0, 1, 2, 4, 8,
16, 32, 64, and 128 where ‘0’ indicates 256 sectors per block. A command
failed status is returned if an illegal value is used in the ATACB.
These bytes contain ATA register data used with ATA command or PIO write
operations. Only registers selected in bmATACBRegisterSelect are required to
hold valid data when accessed. The registers are as follows.
ATACB Address Offset 0x05 (0x3F6) – Device Control
ATACB Address Offset 0x06 (0x1F1) – Features
ATACB Address Offset 0x07 (0x1F2) – Sector Count
ATACB Address Offset 0x08 (0x1F3) – Sector Number
ATACB Address Offset 0x09 (0x1F4) – Cylinder Low
ATACB Address Offset 0x0A (0x1F5) – Cylinder High
ATACB Address Offset 0x0B (0x1F6) – Device
ATACB Address Offset 0x0C (0x1F7) – Command
These bytes must be set to 0x00 for ATACB commands.
Field Description
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Page 18 of 44
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