UPD784915B Datasheet, PDF (3/86 Pages) NEC – 16-BIT SINGLE-CHIP MICROCONTROLLERS

µPD784915B, 784916B
Function List (1/2)
Item
Internal ROM capacity
Internal RAM capacity
Operating clock
Minimum instruction
execution time
I/O ports
Real-time output port
Super
timer
unit
Timer/counter
Capture register
VCR special
circuit
General-purpose
timer
PWM output
Serial interface
A/D converter
µPD784915B
µPD784916B
49152 bytes
63488 bytes
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
TM0 (16 bits)
TM1 (16 bits)
FRC (22 bits)
TM3 (16 bits)
UDC (5 bits)
EC (8 bits)
EDV (8 bits)
Compare register
3
3
-
2
1
4
1
Capture register
Remark
-
1
6
1
-
-
For HSW signal generation
-
For CFG signal division
Input signal
CFG
DFG
HSW
VSYNC
CTL
TREEL
SREEL
Number of bits
22
22
16
22
16
22
22
Measurable cycle
125 ns to 524 ms
125 ns to 524 ms
1 µs to 65.5 ms
125 ns to 524 ms
1 µs to 65.5 ms
125 ns to 524 ms
125 ns to 524 ms
Operating edge
↑
↓
↑
↑
↓
↑
↑
↓
↑
↓
↑
↓
• VSYNC separation circuit, HSYNC separation circuit
• VISS detection, wide aspect detection circuits
• Field identification circuit
• Head amplifier switch/chroma rotation output circuit
Timer
TM2 (16 bits)
TM4 (16 bits)
TM5 (16 bits)
Compare register
1
1 (capture/compare)
1
Capture register
—
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 × 12 channels, conversion time: 10 µs
3