µPD784915A, 784916A
Function List (1/2)
Item
Internal ROM capacity
Internal RAM capacity
Operating clock
Minimum instruction ex-
ecution time
I/O ports
Real-time output port
Timer/counter
Capture register
Super
timer
unit
VCR special circuit
General-purpose
timer
PWM output
Serial interface
A/D converter
µPD784915A
µPD784916A
48 Kbytes
64 Kbytes
1280 bytes
16 MHz (internal clock: 8 MHz)
Low frequency oscillation mode: 8 MHz (internal clock: 8 MHz)
Low power dissipation mode: 32.768 kHz (subsystem clock)
250 ns (with 8-MHz internal system clock)
input : 8
54
I/O : 46
11 (including one each for pseudo VSYNC, head amplifier switch, and chrominance
rotation)
Timer/counter Compare register Capture register
Remark
TM0 (16 bits)
3
-
TM1 (16 bits)
3
1
FRC (22 bits)
-
6
TM3 (16 bits)
2
1
UDC (5 bits)
1
-
EC (8 bits)
4
-
For HSW signal generation
EDV (8 bits)
1
-
For CFG signal division
Input signal Number of bits Measurable cycle Operating edge
CFG
22
125 ns to 524 ms
↑↓
DFG
22
125 ns to 524 ms
↑
HSW
16
1 µs to 65.5 ms
↑↓
VSYNC
22
125 ns to 524 ms
↑
CTL
16
1 µs to 65.5 ms
↑↓
TREEL
22
125 ns to 524 ms
↑↓
SREEL
22
125 ns to 524 ms
↑↓
• VSYNC separation circuit, HSYNC separation circuit
• VISS detection, wide aspect detection circuits
• Field identification circuit
• Head amplifier switch/chroma rotation output circuit
Timer
Compare register
Capture register
TM2 (16 bits)
1
-
TM4 (16 bits)
1 (capture/compare)
1
TM5 (16 bits)
1
-
• 16-bit accuracy : 3 channels (carrier frequency: 62.5 kHz)
• 8-bit accuracy : 3 channels (carrier frequency: 62.5 kHz)
3-wire serial I/O: 2 channels
• BUSY/STRB control (1 channel only)
8-bit resolution x 12 channels, conversion time: 10 µs
3