PCD3349 Просмотр технического описания (PDF) - Philips Electronics
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PCD3349 Datasheet PDF : 20 Pages
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TONE
FILTER
SINE WAVE
GENERATOR
8
HGF
REGISTER
8
LGF
REGISTER
8
8
P2.0 to P2.3
4
PORT 2
BUFFER
PORT 2
FLIP-FLOP
4
P1.0 to P1.7
8
PORT 1
BUFFER
PORT 1
FLIP-FLOP
RESIDENT ROM
4 kbytes
DECODE
MEMORY
BANK
FLIP-FLOPS
P0.0 to P0.7
8
PORT 0
BUFFER
PORT 0
FLIP-FLOP
PCD3349A
HIGHER
PROGRAM
COUNTER
LOWER
PROGRAM
COUNTER
PROGRAM
STATUS
WORD
8
5
8
8
8
8
INTERNAL
CLOCK
FREQUENCY
30
32
T1
8
TIMER/
EVENT
COUNTER
8
INTERRUPT
LOGIC
timer interrupt
8
8
8
ACCUMULATOR
TEMPORARY
REGISTER 1
TEMPORARY
REGISTER 2
ARITHMETIC
POWER-ON-RESET VPOR
RESET
LOGIC UNIT
external interrupt
DECIMAL
ADJUST
STOP
IDLE
CE / T0
CONTROL & TIMING
RESET
XTAL 1
XTAL 2
INTERRUPT INITIALIZE
OSCILLATOR
8
8
8
INSTRUCTION
REGISTER
&
DECODER
RAM
ADDRESS
REGISTER
CONDITIONAL
BRANCH
LOGIC
CE / T0
T1
TIMER
FLAG
CARRY
ACC
ACC BIT
TEST
8
MULTIPLEXER
REGISTER 0
REGISTER 1
REGISTER 2
REGISTER 3
REGISTER 4
REGISTER 5
D
REGISTER 6
E
REGISTER 7
C
O
D
8 LEVEL STACK
(VARIABLE LENGTH)
E OPTIONAL SECOND
REGISTER BANK
DATA STORE
RESIDENT RAM ARRAY
224 bytes
MBG098
Fig.1 Block diagram.
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