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MITSUBISHI MICROCOMPUTERS
M35070-XXXSP/FP
SCREEN CHARACTER and PATTERN DISPLAY CONTROLLERS
DESCRIPTION
The M35070-XXXSP/FP is a character pattern display control IC can display on the CRT display the liquid crystal display and the plasma display. It can display 2 pages (24 characters × 12 lines per 1 page) at the same time. It uses a silicon gate CMOS process and it housed in a 20-pin shrink DIP package (M35070-XXXSP) or a 20-pin shrink SOP package (M35070-XXXFP). For M35070-002SP/FP that is a standard ROM version of M35070XXXSP/FP respectively, the character pattern is also mentioned.
FEATURES
• Screen composition ................ 24 characters × 12 lines × 2 pages • Number of characters displayed .................. 288 (Max.) × 2 pages • Character composition ..................................... 12 × 18 dot matrix • Characters available ................................ page 0 : 256 characters
page 1 : 256 characters
• Character sizes available ................... 4 (vertic al) × 2 (horizontal) • Display locations available
Horizontal direction .............................................. 2007 locations
Vertical direction .................................................. 1023 locations
• Blinking .................................................................. Character units
Cycle : division of vertical synchronization signal into 32 or 64
Duty : 25%, 50%, or 75%
• Data input ............................. By the I2C-BUS serial input function • Coloring
Character color ..................................................... Character unit
Background coloring ............................................. Character unit
Border (shadow) coloring ........................ 8 colors (RGB output)
Specified by register
Raster coloring ........................................ 8 colors (RGB output)
• Blanking
Specified by register Character size blanking
Border size blanking
Matrix-outline blanking
• Output ports
All blanking (all raster area)
4 shared output ports (toggled between RGB output)
4 dedicated output ports
• Display RAM erase function • Display input frequency range ............... FOSC = 20MHz to 90MHz • Horizontal synchronous input frequency
........................................................ H.sync = 15 kHz to 130 kHz
• Display oscillation stop function
APPLICATION
CRT display, Liquid crystal display, Plasma display
PIN CONFIGURATION (TOP VIEW)
CPOUT ← 1
VSS2 2 AC → 3 TEST → 4 SCL → 5 SDA ↔ 6 TCK → 7
VDD1 8 P6 ← 9 P7 ← 10
M35070 - XXXSP
20 VDD2 19 ← VERT 18 ← HOR 17 → P5/B 16 → P4 15 → P3/G 14 → P2 13 → P1/R 12 → P0/BLNK0
11 VSS1
Outline 20P4B
CPOUT ← 1
VSS2 2 AC → 3
TEST → 4 SCL → 5 SDA ↔ 6 TCK → 7
VDD1 8 P6 ← 9 P7 ← 10
M35070 - XXXFP
20 VDD2 19 ← VERT 18 ← HOR 17 → P5/B 16 → P4 15 → P3/G 14 → P2 13 → P1/R 12 → P0/BLNK0
11 VSS1
Outline 20P2Q-A
REV.1.1
MITSUBISHI MICROCOMPUTERS
M35070-XXXSP/FP
SCREEN CHARACTER and PATTERN DISPLAY CONTROLLERS
PIN DESCRIPTION
Pin Number
Symbol
1 CPOUT
Pin name Filter output
Input/ Output
Function
Output Filter output. Connect loop filter to this pin.
2 VSS2
__
3 AC
Earthing pin Auto-clear input
– Connect to GND. Input When “L”, this pin resets the internal IC circuit. Hysteresis input. Built-in pull-up resistor.
4 TEST
Test input
Input Test pin. Connect to +5V.
5 SCL
Clock input
Input SDA pin serial data is taken in when SCL rises. Hysteresis input.
6 SDA
Data I/O
I/O This is the pin for serial input of display control register and display RAM data. Also, this pin output acknowledge signal. Hysteresis input. Nch opendrain output.
7 TCK
External clock
Input This is the pin for external clock input.
8 VDD1 9 P6
Power pin Port P6 output
– Please connect to +5V with the power pin. Output This is the output port.
10 P7
Port P7 output
Output This is the output port.
11 VSS1
Earthing pin
12 P0/BLNK0 Port P0 output
– Please connect to GND using circuit earthing pin. Output This pin can be toggled between port pin output and BLNK0 signal output.
13 P1/R
Port P1 output
Output This pin can be toggled between port pin output and R signal output.
14 P2
Port P2 output
Output This is the output port.
15 P3/G
Port P3 output
Output This pin can be toggled between port pin output and G signal output.
16 P4
Port P4 output
Output This is the output port.
17 P5/B
Port P5 output
Output This pin can be toggled between port pin output and B signal output.
18 HOR
Horizontal synchronous signal input
Input This pin inputs the horizontal synchronous signal. Hysteresis input.
19 VERT
Vertical synchronous signal input
Input This pin inputs the vertical synchronous signal. Hysteresis input.
20 VDD2
Power pin
– Please connect to +5V with the power pin.
2
BLOCK DIAGRAM
MITSUBISHI MICROCOMPUTERS
M35070-XXXSP/FP
SCREEN CHARACTER and PATTERN DISPLAY CONTROLLERS
Polarity switching circuit
Input.