SECTION 6
Conversions and Interfaces
6-90 PEN*KEY
R
6200/6300 Hand-Held Computer Programmer’s Reference Guide
INT 15h, Function AX = 5380h, Subfunction BH = 26h: Read EEPROM
NORAPM
Reads a byte from the system configuration EEPROM and the location specified
by the parameter
offset
. There are 256 bytes of EEPROM storage, starting at
address 0 and ending at address 255.
This interrupt is a NORAND Proprietary System
interface.
On Entry:
AH = 53h
AL = 80h
BH = 26h
BL = EEPROM offset address
On Return:
If successful:
Carry = 0
AH = 00h
AL = Value
If NOT successful:
Carry = 1
AH = Error Code
AL = Undefined
INT 15h, Function AX = 5380h, Subfunction BH = 28h: Set COM2 Mux
NORAPM
Sets the COM2 mux to parameter
mux
, on 6200 Computer.
This interrupt is a
NORAND Proprietary System interface.
On Entry:
AH = 53h
AL = 80h
BH = 28h
BL = Value of COM2 MUX:
Value Description
3
Route scanner on COM2 (1.8 KHz clock)
2
Route infrared on COM2 (1.8 KHz clock)
1
Route 1.8 MHz clock (115.2 Kbps) RSĆ485 on COM2
0
Route 8 MHz clock (500Kbps) RSĆ485 on COM2
On Return:
If successful:
Carry = 0
AH = 0
AL = Undefined
If NOT successful:
Carry = 1
AH = Error Code
AL = Undefined
6. Conversions and
Interfaces
