參數(shù)資料
型號(hào)： ISP1130DL
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, PDSO56
封裝： PLASTIC, SSOP-56
文件頁數(shù)： 7/68頁
文件大小： 1786K
代理商： ISP1130DL
Philips Semiconductors
ISP1130
USB compound hub with keyboard controller
Objective specification
Rev. 01 — 23 March 2000
7 of 68
9397 750 06895
Philips Electronics N.V. 2000. All rights reserved.
[1]
[2]
[3]
Symbol names with an overscore (e.g. NAME) indicate active LOW signals.
MXn pins have an internal 8.2 k
pull-up resistor.
MYn pins have an internal 82 k
pull-down resistor (keyboard matrix enabled) or an internal 8.2 k
pull-up resistor (keyboard matrix disabled). This is controlled by bit DisableKBDMatrix in the USBCON
register, see
Table 53
.
6.
Functional description
The ISP1130 is a compound USB hub with an integrated keyboard controller. It has 2
bus-powered downstream ports with 3 non-removable embedded functions, the first
of which is dedicated to the keyboard function. The downstream ports can be used to
connect low-speed or full-speed USB peripherals, such as a mouse, printer, another
keyboard or another hub. The block diagram is shown in
Figure 1
.
The embedded functions have no external hardware connections. They provide USB
endpoints for equipment functions implemented by a microcontroller. Each endpoint
has an associated FIFO buffer in the on-board RAM, which can be accessed by the
integrated microcontroller via memory mapped registers using special commands
(see
Section 9
).
An optional serial I
2
C-bus interface (see
Section 11
) is provided for external
EEPROM access, allowing the user to program the vendor ID, product ID or activate
the built-in keyboard matrix.
MEMSEL/
UPGL
47
O
pin function is controlled via the USBCON register (see
Table 53
):
GL-MEMSELSelection = 0 —
upstream port GoodLink
indicator output (open-drain)
GL-MEMSELSelection = 1 —
chip select output for
external serial EEPROM (open-drain)
embedded microcontroller clock output; used for emulation
External Address enable input (internal pull-up); used to
access external memory
Address Latch Enable output; used to demultiplex AD0
during external memory access
Program Store ENable output; selects external memory for
program execution
external interrupt input (edge-triggered)
control output for Scroll Lock LED (open-drain)
control output for Num Lock LED (open-drain)
control output for Caps Lock LED (open-drain)
ground supply
SYNCLK
EA
48
49
O
I
ALE
50
O
PSEN
51
O
INT
SCRLOCK
NUMLOCK
CAPSLOCK
GND
52
53
54
55
56
I
O
O
O
-
Table 2:
Symbol
[1]
Pin description (SSOP56 and SDIP56)
…continued
Pin
Type
Description
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ISP1130N 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Universal Serial Bus compound hub with integrated keyboard controller
ISP1160 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Embedded Universal Serial Bus Host Controller
ISP1160BD 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Embedded Universal Serial Bus Host Controller
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ISP1160BD/01 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Embedded Universal Serial Bus Host Controller
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