HD404652 datasheet(7/109 Pages) HITACHI

Part #	HD404652

Description	4-Bit Single-Chip Microcomputer

Download	109 Pages

Scroll/Zoom	100%

Manufacturer	HITACHI [Hitachi Semiconductor]

Direct Link	http://www.renesas.com/eng

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7 / 109 page

HD404654 Series

7

0

$000

64

80

576

960

1023

$040

$050

4

5

6

7

0

3

12

13

14

15

8

9

11

16

17

32

35

18

19

20

63

$003

$004

$005

$006

$007

$008

$009

$00B

$00C

$00D

$00E

$00F

$010

$011

$012

$013

$014

$020

$023

$032

$033

$034

$035

$03F

$00E

$00F

W

R/W

W

R

W

R/W

$3C0

$240

RAM-mapped registers

Memory registers (MR)

Not used

Data (432 digits)

Not used

Stack (64 digits)

Interrupt control bits area

Port mode register A

Serial mode register 1A

Serial data register 1 lower

Serial data register 1 upper

Timer mode register A

Miscellaneous register

Timer mode register C1

Timer C

Timer mode register D2

Register flag area

Port R0 DCR

Port R1 DCR

Port R2 DCR

Port R3 DCR

Port D to D DCR

Port D and D DCR

Not used

0

3

47

89

14

15

Timer read register C lower

Timer read register C upper

Timer write register C lower

Timer write register C upper

$090

R:

W:

R/W:

Read only

Write only

Read/Write

$011

$012

W

R

17

18

Timer read register D lower

Timer read register D upper

Timer write register D lower

Timer write register D upper

144

W

Timer mode register D1

R/W

Timer D

Timer mode register C2

21

$015

22

$016

R

Compare data register

23

$017

36

$024

37

$025

38

$026

39

$027

40

$028

41

$029

42

$02A

43

$02B

24

25

27

26

31

$018

$019

$01A

$01B

$01F

$3FF

Compare enable register

W

44

45

46

47

Port mode register B

Port mode register C

Detection edge select register 2

Serial mode register 1B

System clock select register 1

Not used

Port R4 DCR

W

$02C

$02D

$02E

$02F

$031

$030

53

48

49

50

51

52

Two registers are mapped

on the same area.

R/W

(PMRA)

(SM1A)

(SR1L)

(SR1U)

(TMA)

(MIS)

(TMC1)

(TRCL/TWCL)

(TRCU/TWCU)

(TMD1)

(TRDL/TWDL)

(TRDU/TWDU)

(TMC2)

(TMD2)

(CDR)

(CER)

(TGM)

(TGC)

(PMRB)

(PMRC)

(SM1B)

(SSR1)

(SSR2)

(ESR2)

(DCD0)

(DCD1)

(DCD2)

(DCR0)

(DCR1)

(DCR2)

(DCR3)

(DCR4)

Not used

(TRCL)

(TRCU)

(TRDL)

(TRDU)

(TWCL)

(TWCU)

(TWDL)

(TWDU)

TG mode register

TG control register

System clock select register 2

W

Not used

Figure 2 RAM Memory Map

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