Q67121-C1058 データシートの表示（PDF） - Siemens AG
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Q67121-C1058 Datasheet PDF : 69 Pages
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MOVX
@DPTR
MOVX
@ Ri
DPTR
<
XRAM/CAN
address
range
DPTR
≥
XRAMCAN
address
range
XPAGE
<
XRAMCAN
addr.page
range
XPAGE
≥
XRAMCAN
addr.page
range
EA = 0
EA = 1
XMAP1, XMAP0
XMAP1, XMAP0
00
10
X1
00
10
X1
a)P0/P2→Bus a)P0/P2→Bus a)P0/P2→Bus a)P0/P2→Bus a)P0/P2→Bus a)P0/P2→Bus
b)RD/WR active b)RD/WR active b)RD/WR active b)RD/WR active b)RD/WR active b)RD/WR active
c)ext.memory c)ext.memory c)ext.memory c)ext.memory c)ext.memory c)ext.memory
is used
is used
is used
is used
is used
is used
a)P0/P2→Bus a)P0/P2→Bus a)P0/P2→Bus a)P0/P2→I/0 a)P0/P2→Bus a)P0/P2→Bus
(RD/WR-Data) (RD/WR-Data)
(RD/WR-Data)
b)RD/WR
b)RD/WR active b)RD/WR active b)RD/WR
b)RD/WR active b)RD/WR active
inactive
c)XRAM is used c) ext.memory inactive
c)XRAM is used c) ext.memory
c)XRAM is used
is used
c)XRAM is used
is used
a)P0→Bus
P2→I/O
a)P0→Bus
P2→I/O
a)P0→Bus
P2→I/O
a)P0→Bus
P2→I/O
a)P0→Bus
P2→I/O
a)P0→Bus
P2→I/O
b)RD/WR active b)RD/WR active b)RD/WR active b)RD/WR active b)RD/WR active b)RD/WR active
c)ext.memory c)ext.memory c)ext.memory c)ext.memory c)ext.memory c)ext.memory
is used
is used
is used
is used
is used
is used
a)P0→Bus
(RD/WR-Data)
P2→I/O
b)RD/WR
a)P0→Bus
(RD/WR-Data
only)
P2→I/O
a)P0→Bus
P2→I/O
a)P2→I/O
P0/P2→I/O
b)RD/WR active b)RD/WR
a)P0→Bus
a)P0→Bus
(RD/WR-Data) P2→I/O
P2→I/O
b)RD/WR active b)RD/WR active
inactive
b)RD/WR active
inactive
c)XRAM is used
c)ext.memory c)XRAM is used c)XRAM is used c)ext.memory
c)XRAM is used is used
is used
modes compatible to 8051/C501 family
Table 2
Behaviour of P0/P2 and RD/WR During MOVX Accesses
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