dq8051 Digital Core Design, dq8051 Datasheet - Page 5

• Manufacturer Part Number: dq8051
• Manufacturer: Digital Core Design

rxd0i
reset
clk
port0i
port1i
port2i
port3i
idmdatai
sfrdatai
prgdatai
prgrdy
xdatai
xdatardy
sxdmdatai
int0
int1
t0
gate0
t1
gate1
S Y M B O L
All trademarks mentioned in this document are trademarks of their respective owners.
sxdmdatao
idmwaddr
sxdmaddr
idmdatao
idmraddr
debugacs
sfrwaddr
prgdatao
xaddress
prgdataz
sxdmwe
sfrdatao
xdatawr
sfrraddr
coderun
sxdmoe
prgaddr
xdatard
xdatao
idmwe
port0o
port1o
port2o
port3o
xdataz
idmoe
prgwr
sfrwe
rxd0o
prgrd
pmm
sfroe
Copyright© 1999‐2011 DCD – Digital Core Design. All Rights Reserved
stop
txd0
rsto
idmwaddr
idmdatao
idmraddr
prgdatao
sfrwaddr
prgdataz
xaddress
xdatardy
idmdatai
prgdatai
sfrdatao
xdatawr
sfrraddr
prgaddr
xdatard
sfrdatai
xdatao
idmwe
prgrdy
xdataz
idmoe
xdatai
prgwr
prgrd
sfrwe
sfroe
reset
B L O C K D I A G R A M
rsto
clk
interface
Program
memory
interface
interface
interface
decoder
memory
Memory
Opcode
External
Internal
Control
SFR’s
data
Unit
Data
User
Debug Unit
controller
interface
Interrupt
registers
I/O Port
DoCD™
Timers
PMM
SXDM
Unit
ALU
sxdmaddr
sxdmdatao
sxdmdatai
sxdmoe
sxdmwe
port0
port1
port2
port3
t0
t1
gate0
gate1
int0
int1
pmm
stop
tdi
tck
tms
tdo
rtck
coderun
debugacs