GMS81C4040 View Datasheet(PDF) - Hynix Semiconductor

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GMS81C4040

CMOS SINGLE-CHIP 8-BIT MICROCONTROLLER FOR TELEVISION

Hynix Semiconductor 

GMS81C4040/87C4060

PRELIMINARY

Sprite RAM ....................................................... 60

Test Font .......................................................... 61

I2C Bus Interface .............................. 62

Control .............................................................. 62

I2C address register ......................................... 62

I2C data shift register [ICDR] ........................... 63

I2C status register ............................................ 63

I2C control register 1 ........................................ 64

I2C control register 2 ........................................ 64

START condition generation ............................ 65

RESTART condition generation ....................... 65

STOP condition generation .............................. 65

START / STOP condition detect ...................... 66

Address data communication ........................... 67

INTERRUPTS .................................... 68

Interrupt Mode Register ................................... 68

Interrupt Sequence ...................................72

Interrupt acceptance ........................................ 72

Saving/Restoring General-purpose Register ... 73

Multi Interrupt ............................................74

External Interrupt ..................................... 75

Response Time ................................................ 75

WATCHDOG TIMER ......................... 76

Watchdog Timer Control .................................. 76

Enable and Disable Watchdog ......................... 77

Watchdog Timer Interrupt ................................ 77

Minimizing Current Consumption ..................... 78

OSCILLATOR CIRCUIT .................... 80

RESET ............................................... 81

External Reset Input ................................. 81

Watchdog Timer Reset ............................ 82

OTP Programming ........................... 83

GMS87C4060 OTP Programming ............ 83

.Device configuration data ...................... 84

Timing Chart ............................................. 87

Assemble mnemonics ..................... 89

Instruction Map ......................................... 89

Alphabetic order table of instruction ..... 90

Instruction Table by Function ................. 94

2

PRELIMINARY

Nov. 1999 Ver 1.0

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