Siemens EF 88H Series Manual do Utilizador descarregar pdf (Página 85)

Device Specification

Semiconductor Group 7-23

s

00 10 X1

DPTR < XRAM

address

range

MOVX

@Ri

MOVX

@DPTR

a) P0/P2➝Bus

b)

RD/WR active

c) ext. memory is

used

a) P0/P2

➝Bus

b)

RD/WR active

c) ext. memory is

used

a) P0/P2

➝Bus

b) RD

/WR active

c) ext. memory is

used

a) P0/P2

➝Bus

b) RD

/WR active

c) ext. memory is

used

a) P0/P2

➝Bus

b)

RD/WR active

c) ext. memory is

used

a) P0/P2

➝Bus

b)

RD/WR active

c) ext. memory is

used

a) P0/P2

➝Bus

b)

RD/WR active

c) ext. memory is

used

a) P0/P2

➝Bus

b)

RD/WR active

c) ext. memory is

used

modes compatible to 8051 - family

00 10 X1

XMAP1, XMAP0

EA = 0

a) P0/P2➝BUS

(WR -Data only)

b) RD/WR inactive

c) XRAM is used

a) P0/P2➝BUS

(WR -Data only)

b) RD/WR active

c) XRAM is used

a) P0/P2➝I/0

b)

RD/WR inactive

c) XRAM is used

a) P0/P2➝BUS

(WR -Data only)

b) RD/WR active

c) XRAM is used

a) P0/P2➝BUS

(WR -Data only)

P2➝I/0

b) RD/WR inactive

c) XRAM is used

a) P0/P2➝BUS

(WR -Data only)

P2➝I/0

b) RD/WR active

c) XRAM is used

a) P0

➝Bus

P2

➝I/0

b) RD/WR active

c) ext. memory is

used

a) P0/P2➝I/0

b)

RD/WR inactive

c) XRAM is used

a) P0➝BUS

(WR -Data only)

P2➝I/0

b) RD/WR active

c) XRAM is used

a) P0

➝Bus

P2

➝I/0

b) RD/WR active

c) ext. memory is

used

a) P0

➝Bus

P2➝I/0

b) RD/WR active

c) ext. memory is

used

a) P0

➝Bus

P2➝I/0

b)

RD/WR active

c) ext. memory is

used

a) P0➝Bus

P2➝I/0

b) RD/WR active

c) ext. memory is

used

a) P0

➝Bus

P2➝I/0

b) RD/WR active

c) ext. memory is

used

a) P0

➝Bus

P2➝I/0

b) RD/WR active

c) ext. memory is

used

DPTR ≥ XRAM

address

range

XPAGE < XRAM

addr.

page

range

XPAGE ≥ XRAM

addr.

page

range

XMAP1, XMAP0

EA = 1

a) P0➝Bus

P2➝I/0

b) RD/WR active

c) ext. memory is

used

Table 1:

Behaviour of P0/P2 and RD/WR during MOVX accesses

1 2 ... 80 81 82 83 84 85 86 87 88 89 90 ... 136 137

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