參數(shù)資料
型號： UPD17201A
廠商： NEC Corp.
英文描述： 4-BIT SINGLE-CHIP MICROCONTROLLER WITH LCD CONTROLLER/DRIVER AND A/D CONVERTER FOR INFRARED REMOTE CONTROL TRANSMITTERS
中文描述： 4位單片機與LCD控制器/驅(qū)動器和A / D轉(zhuǎn)換器紅外遙控遞質(zhì)
文件頁數(shù)： 86/120頁
文件大?。?/td> 516K
代理商： UPD17201A
μ
PD17201A, 17207
86
15.1.2
Table 15-1 shows directives available in the mask option definition block.
Mask Option Definition Pseudo Directives
Table 15-1 Mask Option Definition Directives
Item
Directives
Number of
Operands
1st Operand
2nd Operands
RESET mask option
RESET pin
pull-up
resistor
RESPLUP
(Built-in pull-up resistor)
OPEN
(No pull-up resistor)
OPTRES
1
Main clock
Subclock
USEX
(Uses the main clock as
the system clock.)
NOX
(Does not use the main
clock.)
USEXT
Uses the subclock as the
system clock.)
NOXT
(Does not use the
subclock.)
System clock
OPTCK
2
Remark
When both the main clock and the subclock are specified as the system clock, the main clock is initially
selected when the system is reset. After that, the subclock can be selected by an instruction in the
program.
Shown below is a coding example of mask options.
Symbol
Mnemonic
Operand
Comment
[Label: ]
OPTION
OPTRES
OPTCK
ENDOP
[;Comment]
; Pulls up the RESET pin.
; Uses the main clock or subclock.
RESPLUP
USEX, USEXT
15.2 RESERVED SYMBOLS
Table 15-2 lists the symbols defined by the device file of the
μ
PD17207.
The defined symbols include the following register file names, port names, and peripheral hardware names.
15.2.1
The symbol names assigned to the registers in the register file are defined. These registers are accessed via WR
(window register) by the PEEK and POKE instructions. Fig. 15-1 lists the registers in the register file.
Register File
15.2.2
The names of the registers assigned to data memory addresses 00H-7FH, ports assigned to address 70H and those
that follow, and system registers are defined. Fig. 15-2 shows the configuration of the data memory.
Registers on Data Memory and Ports
15.2.3
The names of the peripheral hardware that is accessed by the GET and PUT instructions are defined. Table 15-
3 lists the peripheral hardware.
Peripheral Hardware
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