PCA84C646P PHILIPS [NXP Semiconductors], PCA84C646P Datasheet - Page 3

• Manufacturer Part Number: PCA84C646P
• Description: Microcontrollers for TV tuning control and OSD applications
• Manufacturer: PHILIPS [NXP Semiconductors]

Philips Semiconductors
1
1.1
1.2
1995 Jun 15
8-bit CPU, ROM, RAM, I/O and derivative logic in one
package
Over 80 instructions
All instructions of 1 or 2 cycles
Quasi-bidirectional standard I/O port lines (P0, P1)
Configuration of I/O lines individually selected by mask
External interrupt INT/T0
2 direct testable inputs T0, T1
8-bit timer/event counter
Single level vectored interrupt: external (INT),
counter/timer, I
Configuration of optimal on-chip oscillator
transconductance by mask
On-chip oscillator clock frequency: 1 to 10 MHz
Power-on-reset and low-voltage detector
Low standby voltage and current in Idle and Stop modes
Single power supply: 4.5 to 5.5 V
Operating temperature: 20 to +70 C.
6 kbytes (PCA84C646) or 8 kbytes (PCA84C846)
system ROM, 192 bytes system RAM
A multi-master I
One 14-bit PWM output for VST
Three AFC inputs with 4-bit DAC and comparator
Four 6-bit PWM and four 7-bit PWM outputs
(DACs for analog controls)
Eight port lines with 10 mA LED drive
(at 1.2 V) capability
Microcontrollers for TV tuning
control and OSD applications
FEATURES
PCF84CXXXA kernel
VST and OSD derivative
2
2
C-bus and VSYNC
C-bus interface
3
Programmable active level polarities of VSYNC/HSYNC
Display RAM: 64
Display character fonts: 64 (62 customized + 2 special
reserved codes)
Display starting position: 64 different positions by
software control, both vertical and horizontal
Character size: 4 different character sizes, line-by-line
basis, 1 dot = 1H/1V, 2H/2V, 3H/3V, 4H/4V. (H: OSD
clock period, V: number of horizontal scan line height)
Character matrix: 12
characters
Foreground colours: 8, character-by-character basis
Background colours: 8, word-by-word basis. Available
when background is either in North-west shadowing,
Box shadowing and Frame shadowing mode
Background/shadowing modes: 4, No background,
North-west shadowing, Box shadowing, Frame
shadowing (raster blanking), frame basis
On-chip oscillator for On Screen Display (OSD) function
Character blinking rate: 1 : 1, 1 : 3, 3 : 1 (frequency:
1
character basis
Display format: flexible display format by using Carriage
Return (CR) code
Spacing between lines: 4 different choices,
from 0, 4, 8 or 12 horizontal scan lines
Auto display character RAM address post increment
when writing data
On-chip Power-on-reset
VSYNC leading edge can generate interrupt
(programmable enable/disable by software)
8-bit counter triggered by external pulse input.
16
,
1
32
,
1
64
or
PCA84C646; PCA84C846
1
128
10-bit
of f
18 with no spacing between
VSYNC
, programmable),
Preliminary specification