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DS21348T
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DS21348T数据手册
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DS21348/DS21Q348
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2. PIN DESCRIPTION
The DS21348 can be controlled in a parallel port mode, serial port mode, or hardware mode (Table 2-2,
Table 2-3, and Table 2-4).
Table 2-1. Bus Interface Selection
BIS1 BIS0 PBTS MODE
0 0 0 Muxed Intel
0 0 1 Muxed Motorola
0 1 0 Nonmuxed Intel
0 1 1 Nonmuxed Motorola
1 0 Serial Port
1 1 Hardware
Table 2-2. Pin Assignment in Parallel Port Mode
PIN
DS21348T DS21348G
I/O
PARALLEL
PORT MODE
1
C3 I
CS
2 C2 I
RD (DS)
3 B1 I
WR (R/W)
4 D2 I ALE (AS)
5 C1 I NA
6 D3 I NA
7 D1 I/O A4
8 E1 I A3
9 F2 I A2
10 F1 I A1
11 G1 I A0
12 E3 I/O D7/AD7
13 F3 I/O D6/AD6
14 G2 I/O D5/AD5
15 F4 I/O D4/AD4
16 G3 I/O D3/AD3
17 E4 I/O D2/AD2
18 G4 I/O D1/AD1
19 F5 I/O D0/AD0
20 G5 I VSM
21 F6 VDD
22 G6 VSS
23 E5 I/O
INT
24 E6 O PBEO
25 F7 O RCL/LOTC
26 D6 I TEST
27 D5 I RTIP

DS21348T 数据手册

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DS21348 数据手册

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