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参数资料
型号： 73S1210F-68IMR/F/P
厂商： Maxim Integrated Products
文件页数： 89/126页
文件大小： 0K
描述： IC SMART CARD READER PROG 68-QFN
产品培训模块： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装： 2,500
系列： 73S12xx
核心处理器： 80515
芯体尺寸： 8-位
速度： 24MHz
连通性： I²C，智能卡，UART/USART
外围设备： LED，POR，WDT
输入/输出数： 8
程序存储器容量： 32KB（32K x 8）
程序存储器类型： 闪存
RAM 容量： 2K x 8
电压 - 电源 (Vcc/Vdd)： 2.7 V ~ 6.5 V
振荡器型： 内部
工作温度： -40°C ~ 85°C
封装/外壳： 68-VFQFN 裸露焊盘
包装： 带卷 (TR)
DS_1210F_001
73S1210F Data Sheet
Rev. 1.4
65
Keypad Scan Time Register (KSCAN): 0xD3
0x00
This register contains the values of scanning time and debouncing time.
Table 66: The KSCAN Register
MSB
LSB
DBTIME.5
DBTIME.4 DBTIME.3 DBTIME.2 DBTIME.1 DBTIME.0 SCTIME.1 SCTIME.0
Bit
Symbol
Function
KSCAN.7
DBTIME.5
Debounce time in 4ms increments. 1 = 4ms de-bounce time, 0x3F =
252ms, 0x00 = 256ms. Key presses and key releases are debounced by
this amount of time.
KSCAN.6
DBTIME.4
KSCAN.5
DBTIME.3
KSCAN.4
DBTIME.2
KSCAN.3
DBTIME.1
KSCAN.2
DBTIME.0
KSCAN.1
SCTIME.1
Scan time in ms. 01 = 1ms, 02 = 2ms, 00 = 3ms, 00 = 4ms. Time between
checking each key during keypad scanning.
KSCAN.0
SCTIME.0
Keypad Control/Status Register (KSTAT): 0xD4
0x00
This register is used to control the hardware keypad scanning and detection capabilities, as well as the
keypad interrupt control and status.
Table 67: The KSTAT Register
MSB
LSB
–
KEYCLK
HWSCEN KEYDET
KYDTEN
Bit
Symbol
Function
KSTAT.7
–
KSTAT.6
–
KSTAT.5
–
KSTAT.4
–
KSTAT.3
KEYCLK
The current state of the keyboard clock can be read from this bit.
KSTAT.2
HWSCEN
Hardware Scan Enable – When set, the hardware will perform automatic
key scanning. When cleared, the firmware must perform the key scanning
manually (bypass mode).
KSTAT.1
KEYDET
Key Detect – When HWSCEN = 1, this bit is set causing an interrupt that
indicates a valid key press was detected and the key location can be read
from the Keypad Column and Row registers. When HWSCEN = 0, this bit
is an interrupt which indicates a falling edge on any Row input if all Row
inputs had been high previously (note: multiple Key Detect interrupts may
occur in this case due to the keypad switch bouncing). In all cases, this bit
is cleared when read. When HWSCEN = 0 and the keypad interface 1kHz
clock is disabled, a key press will still set this bit and cause an interrupt.
KSTAT.0
KYDTEN
Key Detect Enable – When set, the KEYDET bit can cause an interrupt and
when cleared the KEYDET cannot cause an interrupt. KEYDET can still
get set even if the interrupt is not enabled.
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73S1210F-68M/F/PH 功能描述:8位微控制器 -MCU RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
73S1210F-68M/F/PJ 制造商:Maxim Integrated Products 功能描述:SCR+PPAD/SRL INTFC/PWR MGT-3.11CODE - Rail/Tube
73S1210F-68MR/F/PG 功能描述:8位微控制器 -MCU RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
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