- 16 - 5.3 LPC Interface Part LPC Interface is formed by LAD0~LAD3, SERIRQ, LRESET#, LFRAME#, LCLK and VCC2. These pins are" />
參數(shù)資料
型號: W83L951DG
廠商: Nuvoton Technology Corporation of America
文件頁數(shù): 26/112頁
文件大小: 0K
描述: IC EMBEDDED CNTRLR 128-LQFP
標(biāo)準(zhǔn)包裝: 90
系列: W83
核心處理器: 8051
芯體尺寸: 8-位
速度: 24MHz
連通性: 主機(jī)接口,PS/2,SMBus,UART/USART
外圍設(shè)備: PWM,WDT
輸入/輸出數(shù): 104
程序存儲器容量: 64KB(64K x 8)
程序存儲器類型: 閃存
RAM 容量: 2K x 8
電壓 - 電源 (Vcc/Vdd): 3 V ~ 3.6 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 8x10b; D/A 2x8b
振蕩器型: 外部
工作溫度: 0°C ~ 70°C
封裝/外殼: 128-LQFP
包裝: 托盤
W83L951DG/W83L951FG
- 16 -
5.3
LPC Interface Part
LPC Interface is formed by LAD0~LAD3, SERIRQ, LRESET#, LFRAME#, LCLK and VCC2. These
pins are defined by LPC interface Spec except VCC2. Below are descriptions about all LPC pins:
Table 5-4 LPC interface pin configuration table
SYMBOL
PIN
I/O
FUNCTION
LCLK
51
Its
PCI clock input. Same 33MHz clock as PCI clock on the host.
Same clock phase with typical PCI skew.
LFRAME#
52
Its
Indicates start of a new cycle or termination of a broken cycle.
LRESET#
53
Its
Reset signal. It can connect to PCIRST# signal on the host.
SERIRQ
54
I/O24ts
Serial IRQ input/Output.
LAD0
56
I/O24ts
LAD[3..0] are multiplexed address, control, and data in LPC
bus.
LAD1
57
I/O24ts
LAD[3..0] are multiplexed address, control, and data in LPC
bus.
LAD2
58
I/O24ts
LAD[3..0] are multiplexed address, control, and data in LPC
bus.
LAD3
59
I/O24ts
LAD[3..0] are multiplexed address, control, and data in LPC
bus.
Note:
Other pins about LPC interface, CLKRUN#: Please see “GP4” part.VCC2: Please see “power & clock” part.
5.4
GPIO0 Part
This part contains:
General Purpose I/O Function
Default is General Purpose I/O. Change the value of GPIO0 and GPIOD0 register to determine 8
input/output.
Keyboard Matrix Column Output
Use Chipctrl2 register bit 3 to enable {GP0, GP1, GP20~23} keyboard scan and GP3 key wakeup
interrupt function.
Internal Flash Access Interface
When TEST# and RESET# are both low, Internal Flash Access Interface is enabled and other
functions are disabled.
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