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PC87366 датащи(PDF) 148 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
номер детали PC87366
подробное описание детали  128-Pin LPC SuperI/O with System Hardware Monitoring, MIDI and Game Ports
PDF  240 Pages
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производитель  NSC [National Semiconductor (TI)]
домашняя страница  http://www.national.com
Logo NSC - National Semiconductor (TI)

PC87366 датащи(HTML) 148 Page - National Semiconductor (TI)

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8.0 ACCESS.bus Interface (ACB) (Continued)
148
www.national.com
8.3
ACB REGISTERS
The following abbreviations are used to indicate the Register Type:
• R/W = Read/Write
• R = Read from a specific address returns the value of a specific register. Write to the same address is to a different
register.
• W=Write
• RO = Read Only
• R/W1C = Read/Write 1 to Clear. Writing 1 to a bit clears it to 0. Writing 0 has no effect.
8.3.1
ACB Register Map
8.3.2
ACB Serial Data Register (ACBSDA)
This shift register is used to transmit and receive data. The most significant bit is transmitted (received) first, and the least
significant bit is transmitted (received) last. Reading or writing to the ACBSDA register is allowed only when the SDAST bit
of the ACBST register is set, or for repeated starts after setting the START bit. An attempt to access this register under other
conditions may produce unpredictable results.
Location:
Offset 00h
Type:
R/W
Offset Mnemonic
Register Name
Type
Section
00h
ACBSDA
ACB Serial Data
R/W
8.3.2
01h
ACBST
ACB Status
Varies per bit
8.3.3
02h
ACBCST
ACB Control Status
Varies per bit
8.3.4
03h
ACBCTL1
ACB Control 1
R/W
8.3.5
04h
ACBADDR ACB Own Address
R/W
8.3.6
05h
ACBCTL2
ACB Control 2
R/W
8.3.7
Bit
76543210
Name
ACB Serial Data
Reset



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