参数资料
型号: L64781
厂商: LSI CORP
元件分类: 消费家电
英文描述: SPECIALTY CONSUMER CIRCUIT, PQFP100
封装: PLASTIC, QFP-100
文件页数: 31/164页
文件大小: 2003K
代理商: L64781
5-56
Registers
ODRAIN_CTRL
Output Drain Controller
D7 R/W
This bit allows the three-wire bus pins to be set in open
drain mode. When 1, the three-wire output bus is working
in open drain (1 => Z, 0 => 0).
The initial value of ODRAIN_CTRL is 1.
The WIRES3_CTRL and ODRAIN_CTRL bits generate
the OBC_WIRE3_CTRL0, 1 and 2 3-state control signals,
as specied in Table 5.8.
ODRAIN_CTRL
Denition
0
Normal mode
1
Output Drain mode
Table 5.8
3-State Control Signals
OBC_WIRE3_OUT
ODRAIN_CTRL
WIRE3_CTRL
OUT
00
0
01
0
00
1
Z
01
1
Z
10
0
1
11
0
Z
10
1
Z
11
1
Z
l64781.book Page 56 Friday, January 19, 2001 1:28 PM
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