T5L_ASIC Development Guide
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3.1 Initial Configuration
When the 8051 kernel is powered on, the special function register (SFR) in the following table must
be initialized correctly.
Configure extended interrupt system;
configure timer T2 to run in autoload mode
The change mode of DPTR after MOVX instruction operation must
be configured to 0x00 if developed with C51.
0x00: No change. 0x01: DPTR=DPTR+1. 0x03: DPTR=DPTR-1.
32KB RAM space accessed by MOVX: 0x8000-0xFFFF
0x60 or configuration
according to
application needs
Peripheral multiplexing selection:
.7 1 = CAN interface leads to P0.2, P0.3, 0 = CAN interface does
not lead out, and it works as an IO interface;
.6 1 = UART2 interface leads to P0.4, P0.5, 0 = UART2 interface
does not lead out, and it works as an IO interface;
.5 1 = UART3 interface leads to P 0.6, P 0.7, 0 = UART3 interface
does not lead out, and it works as an IO interface;
.4-.2 Reserved;
.1 WDT control 1=open 0=close;
.0 WDT feed dog, 1=feed the dog one time(The WDT count
becomes zero, and the watchdog's overflowing time is one
second. );
Driver capability configuration of IO port output mode.
0x00=4mA
0X01=8mA
0X02=16mA
0X03=32mA
DGUS variable memory access interface control