XC68HC705F32 Motorola, XC68HC705F32 Datasheet - Page 77

• Manufacturer Part Number: XC68HC705F32
• Description: MICROCONTROLLER
• Manufacturer: Motorola

MC68HC05F32
3.58 MHz/2
FCR register
FCC register
frequency
frequency
divider
Row
divider
Row
5
5
Figure 7-1 DTMF/melody generator (DMG) block diagram
validator
scanner
scanner
Data
PLA
PLA
DTMF/MELODY GENERATOR
Sine wave
Sine wave
28 x 6 bit
28 x 6 bit
PLA
PLA
TGER
TGEC
6
6
Sine/square
Sine/square
select
wave
select
wave
STOP
TNOE
MS1
MS0
6
msb
lsb
resistor
ladder
MUX
6-bit
pre-emphasis
High group
resistor
ladder
6-bit
Current summer
active low pass
filter
MOTOROLA
+
+
TNX
Tristate
control
TNO
TPG
7-3
7