參數(shù)資料
型號: UPD17243MC-xxx-5A4
廠商: NEC Corp.
英文描述: 4-BIT SINGLE-CHIP MICROCONTROLLERS FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTERS
中文描述: 4位單片微控制器的小型通用兩用紅外遙控遞質(zhì)
文件頁數(shù): 29/102頁
文件大?。?/td> 461K
代理商: UPD17243MC-XXX-5A4
29
Data Sheet U15002EJ1V0DS
μ
PD17240, 17241, 17242, 17243, 17244, 17245, 17246
Table 2-4. Relationship Between Peripheral Hardware and Data Buffer
Peripheral
Hardware
Peripheral Register Transferring Data with Data Buffer
Name
Symbol
Peripheral address
Data buffer used
PUT/GET
8-bit timer
8-bit counter
TMC
05H
DBF0, DBF1
GET only
8-bit modulo
register
TMM
06H
DBF0, DBF1
PUT only
Remote controller
carrier generator
NRZ low-level
timer modulo
register
NRZLTMM
03H
DBF0, DBF1
PUT
GET
NRZ high-level
timer modulo
register
NRZHTMM
04H
DBF0, DBF1
PUT
GET
Address register
Address register
AR
40H
DBF0 to DBF3
PUT
Note 1
GET
Note 2
Notes 1.
In the
μ
PD17240: Bits 0 to 3 of AR3 and bit 3 of AR2 are arbitrary values
In the
μ
PD17241: Bits 0 to 3 of AR3 are arbitrary values
In the
μ
PD17242, 17243: Bits 1 to 3 of AR3 are arbitrary values
In the
μ
PD17244, 17245, 17246: Bits 2 to 3 of AR3 are arbitrary values
2.
In the
μ
PD17240: Bits 0 to 3 of AR3 and bit 3 of AR2 are always 0
In the
μ
PD17241: Bits 0 to 3 of AR3 are always 0
In the
μ
PD17242, 17243: Bits 1 to 3 of AR3 are always 0
In the
μ
PD17244, 17245, 17246: Bits 2 to 3 of AR3 are always 0
(2) Table referencing
An MOVT instruction reads constant data from a specified location of the program memory (ROM) and sets
it in the data buffer.
The function of the MOVT instruction is explained below.
MOVT DBF, @AR: Reads data from a program memory location pointed to by the address register (AR) and
sets it in the data buffer (DBF).
DBF 3
DBF 2
DBF 1
DBF 0
MOVT DBF, @ AR
b
15
b
0
16 bits
Program memory (ROM)
Data buffer
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