參數(shù)資料
型號: IT8228E
英文描述: LPC Media I/F Specification v0.2 | PC Product Line
中文描述: LPC媒體我/女規(guī)格v0.2 |個人電腦產(chǎn)品線
文件頁數(shù): 41/93頁
文件大?。?/td> 479K
代理商: IT8228E
7.8.6
www.ite.com.tw
IT8228E V0.2
31
Configuration
Smart Card Reader Special Configuration Register 2 (Index=F1h, Default=7Fh)
Bit
7
Description
SCPRES_POR (SCPRES# Polarity)
0: Active low (default).
1: Active high.
SCDIV6-0
(SCCLK Special Divisor).
6-0
7.9
7.9.1
GPIO Configuration Registers (LDN=05h)
Interrupt Status Access Base Address MSB Register (Index=60h, Default=00h)
Bit
7-4
3-0
Description
Read only
as “0h” for Base Address [15:12].
Read/write
mapped as Base Address [11:8].
7.9.2
Interrupt Status Access Base Address LSB Register (Index=61h, Default=00h)
Bit
7-0
Description
Read/write
mapped as Base Address [7:0].
7.9.3
GPIO Pin Set 1, 2, 3, 4 and 5 Polarity Registers (Index=B0h, B1h, B2h, B3h and B4h,
Default=00h)
Bit
7-0
Description
PIN_POR7-0 (Pin Polarity)
These bits program the GPIO pins’ polarity.
0: Non-inverting (default).
1: Inverting.
7.9.4
GPIO Pin Set 1, 2, 3, 4 and 5 Pin Internal Pull-up Enable Registers (Index=B8h, B9h, BAh,
BBh and BCh, Default=00h)
Bit
7-0
Description
PIN_PU7-0 (Pin Pull-up)
These bits are used to enable the GPIO pin internal pull-up.
0: No Pull-up (default).
1: With pull-up resistor.
7.9.5
Simple I/O Set 1, 2, 3, 4 and 5 Output Enable Registers (Index=C8h, C9h, CAh, CBh and CCh,
Default=00h)
Bit
7-0
Description
SMIO_DIR7-0 (Simple I/O Direction Select)
These bits determine the directions of the Simple I/O pins.
0: Input (default).
1: Output.
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