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參數(shù)資料
| 型號(hào)： | 73S1209F-EB |
| 廠商： | Maxim Integrated Products |
| 文件頁(yè)數(shù)： | 85/123頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | BOARD EVAL 73S1209F DOC/CD CABLE |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 主要目的： | * |
| 嵌入式： | * |
| 已用 IC / 零件： | * |
| 主要屬性： | * |
| 次要屬性： | * |
| 已供物品： | 板，線纜，CD，電源 |
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73S1209F Data Sheet
DS_1209F_004
Keypad Column Register (KCOL): 0xD1
0x1F
This register contains the value of the column of a key detected as valid by the hardware. In bypass
mode, this register firmware writes directly this register to carry out manual scanning.
Table 65: The KCOL Register
MSB
LSB
–
COL.4
COL.3
COL.2
COL.1
COL.0
Bit
Symbol
Function
KCOL.7
–
KCOL.6
–
KCOL.5
–
KCOL.4
COL.4
Drive lines bit mapped to corresponding with pins COL(4:0). When a key
is detected, firmware reads this register to determine column. In bypass
(S/W keyscan) mode, Firmware writes this register directly. 0x1E =
COL(0) low, all others high. 0x0F = COL(4) low, all others high. 0x1F =
COL(4:0) all high.
KCOL.3
COL.3
KCOL.2
COL.2
KCOL.1
COL.1
KCOL.0
COL.0
Keypad Row Register (KROW): 0xD2
0x3F
This register contains the value of the row of a key detected as valid by the hardware. In bypass mode,
this register firmware reads directly this register to carry out manual detection.
Table 66: The KROW Register
MSB
LSB
–
ROW.5
ROW.4
ROW.3
ROW.2
ROW.1
ROW.0
Bit
Symbol
Function
KROW.7
–
KROW.6
–
KROW.5
ROW.6
Sense lines bit mapped to correspond with pins ROW(5:0). When key
detected, firmware reads this register to determine row. In bypass mode,
firmware reads rows and has to determine if there was a key press or not.
0x3E = ROW(0) low, all others high. 0x1F = ROW(5) low, all others high.
0x3F = ROW(5:0) all high.
KROW.4
ROW.4
KROW.3
ROW.3
KROW.2
ROW.2
KROW.1
ROW.1
KROW.0
ROW.0
64
Rev. 1.2
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