M37270 datasheet(13/94 Pages) MITSUBISHI

13 / 94 page

MITSUBISHI MICROCOMPUTERS

M37270MF-XXXSP

M37270EF-XXXSP, M37270EFSP

SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER

and ON-SCREEN DISPLAY CONTROLLER

(9)Timer 5 · 6 interrupt

An interrupt is generated by an overflow of timer 5 or 6. Their

priorities are same, and can be switched by software.

(10)BRK instruction interrupt

This software interrupt has the least significant priority. It does

not have a corresponding interrupt enable bit, and it is not af-

fected by the interrupt disable flag I (non-maskable).

Fig. 5. Structure of interrupt-related registers

Fig. 6. Interrupt control

Interrupt request bit

Interrupt enable bit

Interrupt disable flag I

BRK instruction

Reset

Interrupt

request

Interrupt request register 1

(IREQ1: address 00FC16)

Timer 1 interrupt request bit

Timer 2 interrupt request bit

Timer 3 interrupt request bit

Timer 4 interrupt request bit

OSD interrupt request bit

VSYNC interrupt request bit

Multi-master I2C-BUS

interface interrupt request bit

Timer 5

6 interrupt request bit

0 : No interrupt request issued

1 : Interrupt request issued

Interrupt request register 2

(IREQ2: address 00FD16)

INT1 interrupt request bit

Data slicer interrupt request bit

Serial I/O interrupt request bit

INT2 interrupt request bit

Fix this bit to “0.”

0 : Interrupt disabled

1 : Interrupt enabled

Interrupt control register 2

( ICON2 : address 00FF16)

INT1 interrupt enable bit

Data slicer interrupt enable bit

Serial I/O interrupt enable bit

Interrupt control register 1

( ICON1: address 00FE16)

Timer 1 interrupt enable bit

Timer 2 interrupt enable bit

Timer 3 interrupt enable bit

Timer 4 interrupt enable bit

OSD interrupt enable bit

VSYNC interrupt enable bit

f(XIN)/4096 interrupt request bit

Multi-master I2C-BUS

interface enable bit

Timer 5

6 interrupt enable bit

INT2 interrupt enable bit

Timer 5

6 interrupt switch bit

f(XIN)/4096 interrupt enable bit

A-D conversion

INT3 interrupt

request bit

0 : Timer 5

1 : Timer 6

A-D conversion

INT3 interrupt

request bit

•

M37270 Datasheet(PDF) 13 Page - Mitsubishi Electric Semiconductor

M37270 Datasheet(HTML) 13 Page - Mitsubishi Electric Semiconductor

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94

Datasheet Download

Link URL