UPD17P136ACT datasheet(76/292 Pages) NEC

поискавой системы для электроныых деталей

UPD17P136ACT датащи(PDF) 76 Page - NEC

номер детали	UPD17P136ACT

подробное описание детали	4-BIT SINGLE-CHIP MICROCONTROLLER

PDF	292 Pages

Scroll/Zoom	100%

производитель	NEC [NEC]

домашняя страница	http://www.nec.com/

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CHAPTER 7 SYSTEM REGISTER (SYSREG)

7.6 GENERAL REGISTER POINTER (RP)

7.6.1 General Register Pointer Configuration

Figure 7-15 shows the configuration of the general register pointer.

Figure 7-15. General Register Pointer Configuration

As shown in Figure 7-15, the general register pointer consists of seven bits; four bits in system register address

7DH (RPH) and the high-order 3 bits of system register address 7EH (RPL). However, since the high-order 3 bits

of address 7DH are always set to 0, the register effectively consists of four bits; the least significant bit of address

7DH and the high-order 3 bits of address 7EH.

All register bits are cleared to 0 at reset.

000

RPL

RPH

7EH

7DH

Address

Name

Symbol

Bit

Data

Initial value when

reset

(RP)

General register

pointer (RP)

Flag

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