ISP1130
Universal Serial Bus compound hub with integrated keyboard controller
Rev.
01 — 23 March 2000 Objective specification
1.
General description
The ISP1130 integrates a Universal Serial Bus (USB) hub with a keyboard controller into a single chip, which complies with Universal Serial Bus Specification Rev.
1.
1 and the USB Device Class Definition for Human Interface Devices (HID).
The hub has 1 to 2 downstream ports and 1 to 3 non-removable embedded functions, one of which is dedicated to the keyboard operation.
The hub controller is fully implemented in hardware, ensuring a fast response to host requests.
The integrated 5 V to 3.
3 V
regulator allows direct connection to the USB power suppl...