參數(shù)資料
型號(hào): TC9324F
廠商: Toshiba Corporation
英文描述: Single-Chip DTS Microcontroller (DTS-20)
中文描述: 單芯片微丘(丘- 20)
文件頁(yè)數(shù): 21/101頁(yè)
文件大?。?/td> 1831K
代理商: TC9324F
TC9324F
2002-02-08
21
I/O Map
All the ports in the device are accessed by six I/O instructions (OUT1 to 3 and IN1 to 3) and 4-bit code
number matrices.
The following pages show the port allocations as an I/O map. On the I/O map, the ports used by I/O
instructions are in horizontal positions and the port code numbers are in vertical positions. The G-register,
data register, DAL address register, and DAL bit are treated as ports.
The OUT1 to 3 instructions specify output ports. The IN1 to 3 instructions specify input ports.
Note: The diagonal lines on the I/O map indicate ports that do not exist in the device. Executing an output
instruction to output data to a non-existent output port has no effect on other ports or on data memory
contents.
When a non-existent input port is specified by an input instruction, all the content read to the data memory
is undefined.
Note: Output ports indicated by an asterisk (*) on the I/O map are unused ports. Any data output to these ports
are “don’t care”.
Note: The contents of the ports are represented by four bits where Y1 corresponds to the lowest bit of the data
in data memory, and Y8 to the highest bit.
The ports specified by the six input/output instructions and by code No. C are represented in this
document by the following notation.
Example: The G-register is set by the OUT1 instruction with codes C and D. Therefore, the notation is
φ
L1C and
φ
L1D.
φ
[K/L] m n (o) (Pp)
Contents of selected port (indirectly specified data, 0 to F (HEX))
I/O instruction operand CN (0 to F (HEX))
The six I/O instructions (IN1 to IN3, OUT1 to OUT3)
I/O instruction
OUT1
OUT2
OUT3
IN1
IN2
IN3
m
1
2
3
1
2
3
Indicates input/output ports.
K: Input port (instructions IN1 to 3)
L: Output port (instructions OUT1 to 3)
Pages (1 to 3)
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