73s1217f68im Maxim Integrated Products, Inc., 73s1217f68im Datasheet - Page 74

• Manufacturer Part Number: 73s1217f68im
• Description: Bus-powered 80515 System-on-chip With Usb, Iso 7816 / Emv, Pinpad And More
• Manufacturer: Maxim Integrated Products, Inc.

Keypad Column MS Scan Order Register (KORDERH): 0xD7
External Interrupt Control Register (INT5Ctl): 0xFF94
1.7.15 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.
74
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
USBIEN
PDMUX
RTCINT
USBINT
Symbol
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 75: The KORDERH Register
Table 76: The INT5Ctl Register
5COL.0
th
th
rd
.
.
(msb’s).
4COL.2
0x00
Function
Function
4COL.1
0x00
KPIEN
4COL.0
KPINT
3COL.2
LSB
LSB
Rev. 1.2