73S1217F Data Sheet
DS_1217F_002
Keypad Column MS Scan Order Register (KORDERH): 0xD7 Å 0x00
Table 75: The KORDERH Register
MSB
LSB
5COL.2 5COL.1 5COL.0 4COL.2 4COL.1 4COL.0 3COL.2
–
Bit
Symbol
–
Function
KORDERH.7
KORDERH.6
KORDERH.5
KORDERH.4
KORDERH.3
KORDERH.2
KORDERH.1
KORDERH.0
5COL.2
5COL.1
5COL.0
4COL.2
4COL.1
4COL.0
3COL.2
Column to scan 5th.
Column to scan 4th.
Column to scan 3rd (msb’s).
External Interrupt Control Register (INT5Ctl): 0xFF94 Å 0x00
Table 76: The INT5Ctl Register
MSB
LSB
KPINT
PDMUX
–
RTCIEN RTCINT USBIEN USBINT KPIEN
Bit
Symbol
PDMUX
–
Function
INT5Ctl.7
INT5Ctl.6
INT5Ctl.5
Power down multiplexer control.
RTCIEN
When set =1, enables RTC interrupt.
When set =1, indicates interrupt from Real Time Clock function. Cleared
on read of register.
INT5Ctl.4
RTCINT
INT5Ctl.3
INT5Ctl.2
INT5Ctl.1
USBIEN
USBINT
KPIEN
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.
INT5Ctl.0
KPINT
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
Rev. 1.2
TERIDIAN [ TERIDIAN SEMICONDUCTOR CORPORATION ]
