W83627THF_06 Datasheet, PDF (16/142 Pages) Winbond – Winbond LPC I/O

W83627THF/W83627THG
PIN DESCRIPTION, continued.
TYPE
DESCRIPTION
OD_12p3 3.3V open-drain output pin with 12 mA sink capability
IN_t
TTL level input pin
IN_tp3
3.3V TTL level input pin
IN_td
TTL level input pin with internal pull down resistor
IN_tu
TTL level input pin with internal pull up resistor
IN_ts
TTL level Schmitt-trigger input pin
IN_tsp3 3.3V TTL level Schmitt-trigger input pin
IN_c
CMOS level input pin
IN_cd
CMOS level input pin with internal pull down resistor
IN_cs
CMOS level Schmitt-trigger input pin
IN_csu
CMOS level Schmitt-trigger input pin with internal pull up resistor
AOUT Analog output
AIN
Analog input
3.1 LPC Interface
SYMBOL
CLKIN
PME#
PCICLK
LDRQ#
SERIRQ
LAD[3:0]
LFRAME#
LRESET#
PIN
I/O
FUNCTION
18
IN_t
System clock input. According to the input frequency 24MHz or
48MHz, it is selectable through register. Default is 24MHz input.
19
OD₈ erated P
21
IN_tsp3 PCI 33 MHz clock input.
22 OUT_12tp3 Encoded DMA Request signal.
23 I/OD_12tp3 Serial IRQ input/Output.
24-27
I/O_12tp3
These signal lines communicate address, control, and data
information over the LPC bus between a host and a peripheral.
29
IN_tsp3 Indicates start of a new cycle or termination of a broken cycle.
30
IN_tsp3 Reset signal. It can connect to PCIRST# signal on the host.
Publication Release Date: September 26, 2006
-9-
Revision 1.2