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): 13/101頁(yè)
文件大?。?/td> 1831K
代理商: TC9324F
TC9324F
2002-02-08
13
5. Data Memory (RAM)
Data memory, which stores the data, is made up of 4 bits x 4,096 words. The 4,096 words are identified
by a row address (8 bits) and a column address (4 bits). 3,932 words (row address
=
04H to FFH) are for
indirect addressing by the G-register. Accordingly, when processing data in this area be sure to first set the
G-register to specify the row address.
Data memory area 00H to 0FH is called the general registers and can be used simply by specifying the (4
bits) column address. The 16 general registers can be used in data memory operations and transfers. The
general registers can also be used as normal data memory.
Note: The (4 bits) column address specifying the general register is used as the general register’s register
number.
Note: All row addresses (00H to FFH) can be indirectly specified by the G-register.
Note: The LD and ST instructions can directly address 256 words of data memory (row address area 00H to
0FH).
General register
(any register within 000H to 00FH)
The LD and ST instructions can
directly specify row addresses
(00H to 0FH).
Row addresses (04H to
FFH) indirectly specified
by G-register
Row address area
00H to 0FH can be
indirectly specified.
*
COLMUN ADDRESS: DC
R
*
0 1 2 3 4 5 6 7 8 9 A B C D E F
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
10
11
12
FC
FE
FF
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