參數(shù)資料
型號: DS2490Y
廠商: Maxim Integrated Products
文件頁數(shù): 38/50頁
文件大?。?/td> 0K
描述: IC BRIDGE CLIP USB TO 1-W 24SOIC
標準包裝: 1,000
應用: USB
接口: 1 線
電源電壓: 3 V ~ 5.5 V
封裝/外殼: 24-SOIC(0.295",7.50mm 寬)
供應商設備封裝: 24-SOIC W
包裝: 管件
安裝類型: 表面貼裝
DS2490
43 of 50
COMMUNICATION COMMANDS
MATCH ACCESS
Setup Packet Encoding:
bmRequestType
0x40
bRequest
COMM_CMD
wValue
byte 2
byte 1
byte 2:
0
NTF
ICP
RST
byte 1:
0
1
0
SE
1
0
IM
wIndex
byte 2
byte 1
byte 2 – new speed:
0x02 with SE = 1 after Overdrive Skip ROM
0x01 or 0x00 with SE = 1 in all other cases
don’t care with SE = 0
byte 1 – 1-Wire command:
Command to be used for addressing a 1-Wire device. Valid codes:
0x55 (Match ROM)
0x69 (Overdrive Match ROM)
wLength
0x0000
READ STRAIGHT
Setup Packet Encoding:
bmRequestType
0x40
bRequest
COMM_CMD
wValue
byte 2
byte 1
byte 2:
Preamble size. Number of bytes to be written.
byte 1:
1
0
NTF
ICP
RST
IM
wIndex
byte 2
byte 1
byte 2 – Block size HI. Number of bytes to be read, most significant
byte.
byte 1 - Block size LOW. Number of bytes to be read, least
significant byte.
wLength
byte 2
byte 1
byte 2 – 0x00 (not used)
byte 1 – Preamble size. Number of bytes to be written.
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相關代理商/技術參數(shù)
參數(shù)描述
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