73S1210F-44IMR/F Maxim Integrated Products, 73S1210F-44IMR/F Datasheet - Page 67
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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DS_1210F_001
Keypad Column LS Scan Order Register (KORDERL): 0xD6 0x00
In the
each. Each set determines which column (COL(4:0) pin) to activate by loading the column number into
the 3 bits. When in HW_Scan_Enable mode, the hardware will step through the sets from 1Col to 5Col
(up to the number of columns in Colsize) and scan the column defined in the 3 bits. To scan in sequential
order, set a counting pattern with 0 in set 0, and 1 in set 1,and 2 in set 2, and 3 in set 3, and 4 in set 4.
The firmware should update this as part of the interrupt service routine so that the new scan order is
loaded prior to the next key being pressed. For example, to scan COL(0) first, 1Col(2:0) should be
loaded with 000’b. To scan COL(4) fifth, 5Col(2:0) should be loaded with 100’b.
Keypad Column MS Scan Order Register (KORDERH): 0xD7 0x00
Rev. 1.4
KORDERH.7
KORDERH.6
KORDERH.5
KORDERH.4
KORDERH.3
KORDERH.2
KORDERH.1
KORDERH.0
KORDERL.7
KORDERL.6
KORDERL.5
KORDERL.4
KORDERL.3
KORDERL.2
KORDERL.1
KORDERL.0
Bit
Bit
KORDERL
MSB
MSB
3COL.1
–
and
Symbol
Symbol
3COL.1
3COL.0
2COL.2
2COL.1
2COL.0
1COL.2
1COL.1
1COL.0
5COL.2
5COL.1
5COL.0
4COL.2
4COL.1
4COL.0
3COL.2
3COL.0
5COL.2
–
KORDERH
2COL.2
5COL.1
Column to scan 3
Column to scan 2
Column to scan 1
Column to scan 5
Column to scan 4
Column to scan 3
registers, Column Scan Order(14:0) is grouped into 5 sets of 3 bits
Table 70: The KORDERH Register
Table 69: The KORDERL Register
2COL.1
5COL.0
rd
nd
st
th
th
rd
.
.
.
.
(lsb’s).
(msb).
2COL.0
4COL.2
Function
Function
1COL.2
4COL.1
1COL.1
4COL.0
73S1210F Data Sheet
1COL.0
3COL.2
LSB
LSB
67
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