参数资料
型号: DS2490
英文描述: USB to 1-Wire Bridge Chip
中文描述: USB与1-Wire桥接芯片
文件页数: 48/50页
文件大小: 530K
代理商: DS2490
DS2490
48 of 50
033199
MODE COMMANDS
bmRequestType
0x40
MODE_CMD
MOD_STRONG_PU_DURATION
byte 2
byte 2 – 0x00
byte 1 – Unsigned 8-bit binary number specifying the pullup
duration. See MODE CONTROL section for byte bit weighting and
additional format information.
0x0000
bRequest
wValue
wIndex
byte 1
wLength
PULLDOWN SLEW RATE
Setup Packet Encoding:
bmRequestType
0x40
MODE_CMD
MOD_PULLDOWN_SLEWRATE
byte 2
byte 2 – 0x00
byte 1 – Code specifying the typical pulldown slew rate. See MODE
CONTROL section for code definition.
0x0000
bRequest
wValue
wIndex
byte 1
wLength
PROG PULSE DURATION
Setup Packet Encoding:
bmRequestType
0x40
MODE_CMD
MOD_PROG_PULSE_DURATION
byte 2
byte 2 – 0x00
byte 1 – Unsigned 8-bit binary number specifying the EPROM
programming pulse duration. See MODE CONTROL section for
byte bit weighting and additional format information.
0x0000
bRequest
wValue
wIndex
byte 1
wLength
WRITE-1 LOW TIME
Setup Packet Encoding:
bmRequestType
0x40
MODE_CMD
MOD_WRITE1_LOWTIME
byte 2
byte 2 – 0x00
byte 1 – Code specifying the Write-1 low time duration. See MODE
CONTROL section for code definition.
bRequest
wValue
wIndex
byte 1
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