Renesas User System Interface Cable HS36049ECH61H Manual do Utilizador descarregar pdf (Página 14)

Peripherals

φ

/2 to

φ

/256

φw

SEGn

(n = 1 to 40)

LCD port control register

LCD control register

LCD control register 2

Display timing generator

LCD RAM

20 bytes

Internal data bus

40-bit

shift

register

LCD drive

power supply

(On-chip 3-V

constant-voltage

power supply circuit)

Segment

driver

Common

data latch

Common

driver

V1

C1

C2

V2

V3

Vss

COM1

COM4

SEG40

SEG39

SEG38

SEG37

SEG36

SEG1

Vcc

LCD trimming register

BGR control register

■ LCD Controller

• Option for

using on-chip

or external

power supply

• Built-in

LCD RAM

(up to 128 bits)

with byte or

word access

• Supports multiple

duty cycles: static,

1/2, 1/3, or 1/4

12

H8

®

Family — On-chip Peripherals: Special Functions

■ Event Link Controller (ELC)

• ELC unit manages real-time interrupts to

trigger multiple peripherals in sequence

• All peripherals including DTC (Data Transfer

Controller) can be activated through ELC

• Frees up CPU to handle additional operations

• Eliminates code required for interrupt servicing

Event Link Controller Diagram

CPU FreeCPU Active

Event

Link

Controller

Interrupt

Controller

ADC

Timer 1

Peripheral x

Timer 2

H8S

CPU

1

2

7

3

4

5

6

■ Peripheral I/O Mapping Controller (PMC)

• Digital pins can be

configured to a

maximum of 7

different functions

(ex: Serial, Timer,

Interrupt, I/O, etc.)

• One board design

can accommodate

multiple product

variations

• Optimizes pin

compatibility

between different

MCU devices

• Reduces board revisions

if layout errors occur

PMC Diagram

A

nalog

Pins

System

Pins

Timer

function Analog

Pins

Timer function

Serial

I/F

System

Pins

Port 3

Port 2

Port 7Port 8

Port 3

Port 2

Port 7Port 8

External Interrupt

External

Interrupt

Serial

I/F

H8S/Tiny

H8S/Tiny

Fixed

Fixed

Port 5 Port 6

Port 1

Port B

Port 5 Port 6

Port 1

Port B

LCD Controller Diagram:

H8/38099

1 2 ... 9 10 11 12 13 14 15 16 17 18 19 ... 49 50

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