C505_9708 SIEMENS [Siemens Semiconductor Group], C505_9708 Datasheet - Page 31

• Manufacturer Part Number: C505_9708
• Description: 8-Bit CMOS Microcontroller
• Manufacturer: SIEMENS [Siemens Semiconductor Group]

MOVX
@DPTR
MOVX
@ Ri
Table 3-1 - Behaviour of P0/P2 and RD/WR During MOVX Accesses
modes compatible to 8051/C501 family
DPTR
<
XRAM/CAN
address
range
DPTR
XRAM/CAN
address
range
XPAGE
<
XRAM/CAN
addr.page
range
XPAGE
XRAM/CAN
addr.page
range
00
a)P0/P2
b)RD/WR active
c)ext.memory is
used
a)P0/P2
(RD/WR-Data)
b)RD/WR
inactive
c)XRAM/CAN is
used
a)P0
P2
b)RD/WR active
c)ext.memory is
used
a)P0
(RD/WR-Data)
P2
b)RD/WR
inactive
c)XRAM/CAN is
used
I/O
I/O
Bus
Bus
Bus
Bus
XMAP1, XMAP0
10
a)P0/P2
b)RD/WR active
c)ext.memory is
used
a)P0/P2
(RD/WR-Data)
b)RD/WR active
c)XRAM/CAN is
used
a)P0
P2
b)RD/WR active
c)ext.memory is
used
a)P0
(RD/WR-Data)
P2
b)RD/WR active
c)XRAM/CAN is
used
EA = 0
I/O
I/O
Bus
Bus
Bus
Bus
X1
a)P0/P2
b)RD/WR active
c)ext.memory is
used
a)P0/P2
b)RD/WR active
c) ext.memory
is used
a)P0
P2
b)RD/WR active
c)ext.memory is
used
a)P0
P2
b)RD/WR active
c)ext.memory is
used
I/O
I/O
Bus
Bus
Bus
Bus
00
a)P0/P2
b)RD/WR active
c)ext.memory is
used
a)P0/P2
b)RD/WR
inactive
c)XRAM/CAN is
used
a)P0
P2
b)RD/WR active
c)ext.memory is
used
a)P0/P2
b)RD/WR
inactive
c)XRAM/CAN is
used
I/O
Bus
Bus
I/O
I/O
XMAP1, XMAP0
10
a)P0/P2
b)RD/WR active
c)ext.memory is
used
a)P0/P2
(RD/WR-Data)
b)RD/WR active
c)XRAM/CAN is
used
a)P0
P2
b)RD/WR active
c)ext.memory is
used
a)P0
(RD/WR-Data)
P2
b)RD/WR active
c)XRAM/CAN is
used
EA = 1
I/O
I/O
Bus
Bus
Bus
Bus
X1
a)P0/P2
b)RD/WR active
c)ext.memory is
used
a)P0/P2
b)RD/WR active
c) ext.memory
is used
a)P0
P2
b)RD/WR active
c)ext.memory is
used
a)P0
P2
b)RD/WR active
c)ext.memory is
used
I/O
I/O
Bus
Bus
Bus
Bus