73S1210F-44IMR/F Maxim Integrated Products, 73S1210F-44IMR/F Datasheet - Page 64
73S1210F-44IMR/F
Manufacturer Part Number
73S1210F-44IMR/F
Description
IC SMART CARD READER 44-QFN
Manufacturer
Maxim Integrated Products
Datasheet
1.73S1210F-44MFPC.pdf
(126 pages)
Specifications of 73S1210F-44IMR/F
Core Processor
80515
Core Size
8-Bit
Speed
24MHz
Connectivity
I²C, SmartCard, UART/USART
Peripherals
LED, POR, WDT
Number Of I /o
8
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Ram Size
2K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 6.5 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
*
Processor Series
1210x
Core
80515
Mounting Style
SMD/SMT
3rd Party Development Tools
PK51, CA51, A51, ULINK2
Development Tools By Supplier
73S1210F-EB
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Data Converters
-
Lead Free Status / Rohs Status
Details
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73S1210F Data Sheet
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.
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.
64
KROW.7
KROW.6
KROW.5
KROW.4
KROW.3
KROW.2
KROW.1
KROW.0
KCOL.7
KCOL.6
KCOL.5
KCOL.4
KCOL.3
KCOL.2
KCOL.1
KCOL.0
Bit
Bit
MSB
MSB
–
–
Symbol
Symbol
ROW.6
ROW.4
ROW.3
ROW.2
ROW.1
ROW.0
COL.4
COL.3
COL.2
COL.1
COL.0
–
–
–
–
–
–
–
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.
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.
ROW.5
Table 65: The KROW Register
–
Table 64: The KCOL Register
ROW.4
COL.4
ROW.3
COL.3
Function
Function
ROW.2
COL.2
ROW.1
COL.1
ROW.0
COL.0
LSB
LSB
DS_1210F_001
Rev. 1.4
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