參數(shù)資料
型號(hào): T9000
英文描述: ISDN Network Termination Node (NTN) Device
中文描述: ISDN網(wǎng)絡(luò)終端節(jié)點(diǎn)(新界北)設(shè)備
文件頁數(shù): 86/126頁
文件大小: 2127K
代理商: T9000
86
Lucent Technologies Inc.
Preliminary Data Sheet
November 2000
ISDN Network Termination Node (NTN) Device
T9000
11 GPIO Ports
(continued)
Note:
Alternate pin functions, shown in parentheses (), are selected when the TEST pin is asserted.
Alternate pin functions, shown in brackets [], are selected when the corresponding register bits are set.
5-6529F.c
Figure 20. GPIO Pin Capabilities Summary
11.1 GPIO Register Set
Table 90. GPDIR0: GPIO Port 0 Pin Direction (0x38)
Reg
GPDIR0
RESET
R/W
R/W
Default
Bit 7
DIR0.7
1
Bit 6
DIR0.6
1
Bit 5
DIR0.5
1
Bit 4
DIR0.4
1
Bit 3
DIR0.3
1
Bit 2
DIR0.2
1
Bit 1
DIR0.1
1
Bit 0
DIR0.0
1
Bit #
7—0
Symbol
DIR0.[7:0]
Name/Description
GPIO0.[7:0] Pin Direction.
0: Output.
1: Input.
Note:
When any of bits 7:4 in register GPAF0 are set, the corresponding DIR0.x value in
this register is ignored and the pin function is determined according to the GPAF0
register function.
.0
.1
.2
.3
.4
.5
.6
.7
α
α
α
α
[PWMO00]
[PWMO01]
[PWMO10]
[PWMO11]
GPIO0
.0
.1
.2
.3
.4
.5
.6
.7
α
α
α
α
(USSP_E)
χ
[T0]
χ
[T1]
χ
[T2]
GPIO1
.0
.1
.2
.3
.4
.5
.6
δ
[BCLK]
[FSC]
[SYNCO]
GPIO2.7
[MTC]
(PTLB_S)
α
: External interrupt capability.
χ
: Optional trigger sources for timers.
δ
: 6 mA sink capability.
: Schmitt trigger when inputs.
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