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85
CHAPTER 1 FEATURES OF 78K/IV SERIES PRODUCTS
1.14.4 Outline of functions
Product Name
μ
PD784927
μ
PD78F4928
Item
Number of instructions
113
Minimum instruction execution time
250 ns (internal clock: 8-MHz operation)
Internal memory capacity
ROM
96 Kbytes (Mask ROM)
128 Kbytes (Flash memory)
RAM
2,048 bytes
3,584 bytes
Interrupt sources
External
9 (including NMI)
Internal
22 (including software interrupt)
4 levels programmable priority
3 types of processing methods
Vectored interrupt, macro service, context switching
I/O ports
Input
20
I/O
54 (including LED direct drive ports: 8)
Time base counter
22-bit FRC
Resolution: 125 ns, maximum count time: 524 ms
Capture registers
Input signal
Number of bits
Measuring cycle
Operating edge
CFG
DFG
HSW
V
SYNC
CTL
T
REEL
S
REEL
22
22
16
22
16
22
22
125 ns to 524 ms
125 ns to 524 ms
1
μ
s to 65.5 ms
125 ns to 524 ms
1
μ
s to 65.5 ms
125 ns to 524 ms
125 ns to 524 ms
↑
↑
↑
↑
↑
↑
↑
↓
↓
↓
↓
↓
General-purpose timer
16-bit timer
×
3
PBCTL duty identification
Identifies duty of recording control signal
VISS detection, wide aspect detection
Linear time counter
5-bit UDC counts CTL signal
Real-time output port
11
Serial interface
3-wire serial I/O: 2 channels (including BUSY/STRB control possible: 1 channel)
Buzzer output function
1.95 kHz, 3.91 kHz, 7.81 kHz, 15.6 kHz (internal: 8-MHz operation)
2.048 kHz, 4.096 kHz, 32.768 kHz (subsystem clock: 32.768-kHz operation)
A/D converter
8-bit resolution
×
12 channels, conversion time: 10
μ
s
PWM output
16-bit resolution
×
3 channels, 8-bit resolution
×
3 channels
Carrier frequency: 62.5 kHz
Watch function
0.5-second measurement, low-voltage operation (V
DD
= 2.7 V) possible
Standby function
HALT mode
HALT mode/STOP mode/low power consumption mode/low power consumption
Analog circuits
CTL amplifier
RECCTL driver (rewriting supported)
CFG amplifier
DFG amplifier
DPG amplifier
DPFG separation circuit
(ternary separation circuit)
Reel FG comparator
CSYNC comparator
Power supply voltage
V
DD
= +2.7 to 5.5 V
Package
100-pin plastic QFP (14
×
20 mm)