參數(shù)資料
型號： ISP1130N
廠商： NXP SEMICONDUCTORS
元件分類： 微控制器/微處理器
英文描述： Universal Serial Bus compound hub with integrated keyboard controller
中文描述： SPECIALTY MICROPROCESSOR CIRCUIT, PDIP56
封裝： PLASTIC, SDIP-56
文件頁數(shù)： 5/68頁
文件大小： 1786K
代理商： ISP1130N
Philips Semiconductors
ISP1130
USB compound hub with keyboard controller
Objective specification
Rev. 01 — 23 March 2000
5 of 68
9397 750 06895
Philips Electronics N.V. 2000. All rights reserved.
5.2 Pin description
Table 2:
Symbol
[1]
XTAL1
XTAL2
RESET
Pin description (SSOP56 and SDIP56)
Pin
Type
1
I
2
O
3
I
Description
crystal oscillator input (6 MHz)
crystal oscillator output (6 MHz)
reset input (Schmitt trigger); a LOW level produces an
asynchronous reset; connect to V
CC
for power-on reset
(internal POR circuit)
supply voltage; connect to USB supply V
BUS
ground supply
regulated supply voltage (3.3 V
±
10%) from internal
regulator; used to connect pull-up resistor on UP_DP line;
pin function is controlled via the Device Status Register
(see
Table 36
):
Connect = 0 —
V
pu(3.3)
floating (high impedance)
Connect = 1 —
V
pu(3.3)
= 3.3 V
upstream port D
connection (analog)
upstream port D
+
connection (analog)
downstream port 1 D
connection (analog)
downstream port 1 D
+
connection (analog)
downstream port 2 D
connection (analog)
downstream port 2 D
+
connection (analog)
power switch control output for downstream port 1
(open-drain)
power switch control output for downstream port 2
(open-drain)
pin function is controlled via the USBCON register (see
Table 53
):
EnableOverCurrent = 0 —
GoodLink LED indicator output
for downstream port 1 (analog, open-drain); to connect an
LED use a 330
series resistor
EnableOverCurrent = 1 —
overcurrent sense input for
downstream port 1 (analog or digital); overcurrent sensing
can be either analog (AnalogOCDisable = 0) or digital
(AnalogOCDisable = 1)
pin function is controlled via the USBCON register (see
Table 53
):
EnableOverCurrent = 0 —
GoodLink LED indicator output
for downstream port 2 (analog, open-drain); to connect an
LED use a 330
series resistor
EnableOverCurrent = 1 —
overcurrent sense input for
downstream port 2 (analog or digital); overcurrent sensing
can be either analog (AnalogOCDIsable = 0) or digital
(AnalogOCDisable = 1)
ground supply
keyboard matrix return line (5 V tolerant, open drain)
[2]
keyboard matrix return line (5 V tolerant, open drain)
[2]
V
CC
GND
V
pu(3.3)
4
5
6
-
-
-
UP_DM
UP_DP
DN1_DM
DN1_DP
DN2_DM
DN2_DP
PSW1
7
8
9
10
11
12
13
AI/O
AI/O
AI/O
AI/O
AI/O
AI/O
O
PSW2
14
O
OC1/DPGL1
15
AI/O
OC2/DPGL2
16
AI/O
GND
MX0
MX1
17
18
19
-
I
I
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