參數(shù)資料
型號(hào): UPD17149CTA1
廠商: NEC Corp.
英文描述: SMALL, GENERAL-PURPOSE 4-BIT SINGLE-CHIP MICROCONTROLLERS
中文描述: 小,通用4位單晶片微控制器
文件頁(yè)數(shù): 73/102頁(yè)
文件大?。?/td> 408K
代理商: UPD17149CTA1
73
μ
PD17145(A1), 17147(A1), 17149(A1)
(2) Mask option definition directives
Table 21-1. Mask Option Definition Directives
Option
Definition Directive and Format
Operand
Defined Contents
Internal pull-up resistor
OPTRES <operand>
OPEN
None
of RESET pin
PULLUP
Defined
Internal pull-up resistor
OPTP0F <operand 1>, <operand 2>
Note
OPEN
None
of P0F
1
and P0F
0
pins
PULLUP
Defined
Internal pull-up resistor
OPTINT <operand>
OPEN
None
of INT pin
PULLUP
Defined
Internal POC circuit
OPTPOC <operand>
NOUSE
Not used
USE
Used
Note
<operand 1> specifies the mask option of the P0F
1
pin, and <operand 2> specifies that of the P0F
0
pin.
(3) Example of mask option description
; Example of describing mask option of the
μ
PD17149 (A1)
MASK_OPTION:
OPTION
OPTRES PULLUP
OPTP0F PULLUP, OPEN ; connects internal pull-up resistor to P0F
1
, and leaves P0F
0
open (exter-
nally pulled up)
OPTINT PULLUP
; connects internal pull-up resistor to INT pin
OPTPOC NOUSE
; internal POC circuit is not used
ENDOP
; End of mask option definition block
; start of mask option definition block
; connects internal pull-up resistor to RESET pin
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