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PCD3755FP 데이터시트 PDF




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부품번호 PCD3755FP 기능
기능 8-bit microcontrollers with DTMF generator/ 8 kbytes OTP and 128 bytes EEPROM
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PCD3755FP 데이터시트, 핀배열, 회로
INTEGRATED CIRCUITS
DATA SHEET
PCD3755A; PCD3755E;
PCD3755F
8-bit microcontrollers with DTMF
generator, 8 kbytes OTP and 128
bytes EEPROM
Product specification
Supersedes data of 1996 Dec 18
File under Integrated Circuits, IC03
1997 Apr 16




PCD3755FP pdf, 반도체, 판매, 대치품
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P2.0 to P2.3
4
PORT 2
BUFFER
PORT 2
FLIP-FLOP
4
TONE
FILTER
SINE WAVE
GENERATOR
HGF
REGISTER
LGF
REGISTER
88
P1.0 to P1.6
P1.7/MDY 7
PORT 1
BUFFER
PORT 1
FLIP-FLOP
MELODY
CONTROL
REGISTER
8
INTERNAL
CLOCK
FREQ.
30
32
T1
8 PCD3755x
RESIDENT
OTP-ROM
8 kbytes
DECODE
MEMORY
BANK
FLIP-FLOPS
TIMER/
EVENT
COUNTER
HIGHER
PROGRAM
COUNTER
85
P0.0 to P0.7
8
PORT 0
BUFFER
PORT 0
FLIP-FLOP
LOWER
PROGRAM
COUNTER
PROGRAM
STATUS
WORD
888
8
8
TIMER 2
RELOAD
REGISTER
8
TIMER 2
REGISTER
8
EEPROM
CONTROL
REGISTER
POWER-ON-RESET VPOR
RESET
8
EEPROM
ADDRESS
REGISTER
88
8
EEPROM
DATA
TRANSFER
INTERRUPT
LOGIC
ACCUMULATOR
derivative
interrupt
timer interrupt
8
TEMPORARY
REGISTER 2
8
TEMPORARY
REGISTER 1
ARITHMETIC
EEPROM
128 bytes
LOGIC UNIT
external interrupt
DECIMAL
ADJUST
STOP
IDLE
CONTROL AND TIMING
CE/T0 RESET
XTAL1
XTAL2
INTERRUPT INITIALIZE
OSCILLATOR
88
88
MULTIPLEXER
INSTRUCTION
REGISTER
AND
DECODER
RAM
ADDRESS
REGISTER
CONDITIONAL
BRANCH
LOGIC
T1
CE/T0
TIMER
FLAG
CARRY
ACC
REGISTER 0
REGISTER 1
REGISTER 2
REGISTER 3
REGISTER 4
REGISTER 5
D REGISTER 6
E REGISTER 7
C
O 8 LEVEL STACK
D (VARIABLE LENGTH)
E OPTIONAL SECOND
REGISTER BANK
DATA STORE
ACC BIT
TEST
RESIDENT RAM ARRAY
128 bytes
MBG639
Fig.1 Block diagram.

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PCD3755FP 전자부품, 판매, 대치품
Philips Semiconductors
8-bit microcontrollers with DTMF generator,
8 kbytes OTP and 128 bytes EEPROM
Product specification
PCD3755A; PCD3755E;
PCD3755F
6 FREQUENCY GENERATOR
A versatile frequency generator section is provided (see
Fig.4). For normal operation, use a 3.58 MHz quartz
crystal or PXE resonator. The frequency generator
includes precision circuitry for dual tone multifrequency
(DTMF) signals, which is typically used for tone dialling
telephone sets.
Their frequencies are provided in purely sinusoidal form on
the TONE output or as square waves on the P1.7/MDY
output.
The TONE output can alternatively issue twelve modem
frequencies for data rates between 300 and 1200 bits/s.
In addition to DTMF and modem frequencies, two octaves
of musical scale in steps of semitones are available.
In case no tones are generated the TONE output is in
3-state mode.
6.1 Frequency generator derivative registers
6.1.1 HIGH AND LOW GROUP FREQUENCY REGISTERS
Table 3 gives the addresses, mnemonics and access types of the High Group Frequency (HGF) and Low Group
Frequency (LGF) registers.
Table 3 Hexadecimal addresses, mnemonics, access types and bit mnemonics of the frequency registers
REGISTER REGISTER ACCESS
BIT MNEMONICS
ADDRESS MNEMONIC TYPE
7654321
11H HGF
W H7 H6 H5 H4 H3 H2 H1
12H LGF
W L7 L6 L5 L4 L3 L2 L1
0
H0
L0
6.1.2 MELODY CONTROL REGISTER (MDYCON)
MDYCON is a R/W register.
Table 4 Melody Control Register (address 13H)
76543210
0 0 0 0 0 0 0 EMO
Table 5 Description of MDYCON bits
BIT
7 to 1
0
MNEMONIC
DESCRIPTION
These bits are set to a logic 0.
EMO
Enable Melody Output. If bit EMO = 0, then P1.7/MDY is a standard port line.
If bit EMO = 1, then P1.7/MDY is the melody output. EMO = 1 does not inhibit the port
instructions for P1.7/MDY. Therefore the state of both port line and flip-flop may be read
in and the port flip-flop may be written by port instructions. However, the port flip-flop of
P1.7/MDY must remain set to avoid conflicts between melody and port outputs.
When the HGF contents are zero while EMO = 1, P1.7/MDY is in the logic HIGH state.
1997 Apr 16
7

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