73s1209f68im Maxim Integrated Products, Inc., 73s1209f68im Datasheet - Page 67
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73s1209f68im
Manufacturer Part Number
73s1209f68im
Description
Self-contained Pinpad, Smart Card Reader Ic Uart To Iso7816 / Emv Bridge Ic
Manufacturer
Maxim Integrated Products, Inc.
Datasheet
1.73S1209F68IM.pdf
(123 pages)
- Current page: 67 of 123
- Download datasheet (2Mb)
DS_1209F_004
Keypad Column MS Scan Order Register (KORDERH): 0xD7
External Interrupt Control Register (INT5Ctl): 0xFF94
1.7.12 Emulator Port
The emulator port, consisting of the pins E_RST, E_TCLK and E_RXTX, provides control of the MPU
through an external in-circuit emulator. The E_TBUS[3:0] pins, together with the E_ISYNC/BRKRQ, add
trace capability to the emulator. The emulator port is compatible with the ADM51 emulators
manufactured by Signum Systems.
If code trace capability is needed on this interface, 20pF capacitors (to ground) need to be added to allow
the trace function capability to run properly. These capacitors should be attached to the TBUS0:3 and
ISBR signals.
Rev. 1.2
KORDERH.7
KORDERH.6
KORDERH.5
KORDERH.4
KORDERH.3
KORDERH.2
KORDERH.1
KORDERH.0
INT5Ctl.7
INT5Ctl.6
INT5Ctl.5
INT5Ctl.4
INT5Ctl.3
INT5Ctl.2
INT5Ctl.1
INT5Ctl.0
Bit
Bit
MSB
MSB
PDMUX
–
RTCIEN
RTCINT
USBIEN
USBINT
Symbol
PDMUX
Symbol
5COL.2
5COL.1
5COL.0
4COL.2
4COL.1
4COL.0
3COL.2
KPIEN
KPINT
5COL.2
–
–
–
Column to scan 5
Column to scan 4
Column to scan 3
Power down multiplexer control.
When set =1, enables RTC interrupt.
When set =1, indicates interrupt from Real Time Clock function. Cleared
on read of register.
USB interrupt enable.
USB interrupt flag.
Enables Keypad interrupt when set = 1.
This bit indicates the Keypad logic has set Key_Detect bit and a key
location may be read. Cleared on read of register.
5COL.1
RTCIEN RTCINT USBIEN USBINT
Table 71: The KORDERH Register
Table 72: The INT5Ctl Register
5COL.0
th
th
rd
.
.
(msb).
4COL.2
0x00
Function
Function
4COL.1
0x00
KPIEN
4COL.0
73S1209F Data Sheet
KPINT
3COL.2
LSB
LSB
67
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