HD4074329S Renesas Electronics America, HD4074329S Datasheet - Page 13

• Manufacturer Part Number: HD4074329S
• Description: MCU 4-Bit HMCS400 CISC 20KB EPROM 3.3V/5V 64-Pin SDIP
• Manufacturer: Renesas Electronics America

Specifications of HD4074329S

• Package: 64SDIP
• Family Name: HMCS400
• Maximum Speed: 4.5 MHz
• Ram Size: 268 Byte
• Program Memory Size: 20 KB
• Operating Supply Voltage: 3.3|5 V
• Data Bus Width: 4 Bit
• Program Memory Type: EPROM
• Number Of Programmable I/os: 35
• On-chip Adc: 4-chx8-bit
• Operating Temperature: -20 to 75 °C
• Number Of Timers: 3

RAM Memory Map
The MPU contains a 280-digit
HD404328U) or 536-digit
stack area. In addition, interrupt control bits and special registers are mapped onto the same RAM memory
space outside this area. The RAM memory map is shown in figure 2 and described below.
1023
103
104
111
112
287
288
543
544
959
960
Note:
63
64
79
80
0
Shaded area can only be
used by the HD4074329, and
HD4074329U
RAM-mapped registers
Memory registers (MR)
*
R/W:
Two registers mapped on the
same area
LCD display area
W:
R:
(176 digits)
(256 digits)
(64 digits)
(16 digits)
(24 digits)
(64 digits)
Not used
Not used
Timer/event counter B, upper
Timer/event counter B, lower
Stack
Data
Data
Read only
Write only
Read/write
Timer counter C, upper
Timer counter C, lower
4-bit (HD4074329, HD4074329U) RAM area consisting of a data area and a
(TCCU)
(TCBU)
(TCCL)
(TCBL)
4-bit (HD404324, HD404324U, HD404326, HD404326U, HD404328,
Figure 2 RAM Memory Map
$000
$03F
$040
$04F
$050
$067
$068
$06F
$070
$11F
$120
$21F
$220
$3BF
$3C0
$3FF
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
32
35
48
49
50
51
52
53
59
60
61
62
63
R
R
R
R
0
1
2
3
4
5
6
7
8
9
Port mode register A
Serial mode register
Serial data register, lower
Serial data register, upper
Timer mode register A
Timer mode register B
* Timer B
Miscellaneous register
Timer mode register C
* Timer C
Interrupt mode register
Port mode register B
Port mode register C
LCD control register
LCD mode register
LCD output register
A/D mode register
A/D data register, lower
A/D data register, upper
Port R0 DCR
Port R1 DCR
Port R2 DCR
Port R3 DCR
Port R4 DCR
Port R5 DCR
Port D –D DCR
Port D –D DCR
Port D DCR
Timer load register B, upper
Timer load register C, upper
Timer load register B, lower
Timer load register C, lower
4
0
8
Interrupt control bits area
3
7
Register flag area
(TCRU)
(TLRU)
(TCRL)
(TLRL)
Not used
Not used
Not used
Not used
(TCCU/TCRU)
(TCBU/TLRU)
(TCCL/TCRL)
(TCBL/TLRL)
(PMRC)
(PMRA)
(PMRB)
(ADRU)
(DCRB)
(DCRC)
(DCRD)
(DCR0)
(DCR1)
(DCR2)
(DCR3)
(DCR4)
(DCR5)
(ADRL)
(SMR)
(AMR)
(TMC)
(SRU)
(TMA)
(TMB)
(LMR)
(LOR)
(LCR)
(SRL)
(IMR)
(MIS)
HD404328 Series
R/W
R/W
R/W
R/W
R/W
R/W
W
W
W
W
W
W
W
W
W
W
W
W
W
W
W
W
W
W
W
W
W
W
R
R
W
W
W
W
$00A
$00B
$000
$001
$002
$003
$004
$005
$006
$007
$008
$009
$00A
$00B
$00C
$00D
$00E
$00F
$010
$011
$012
$013
$014
$015
$016
$017
$018
$020
$023
$030
$031
$032
$033
$034
$035
$03B
$03C
$03D
$03E
$03F
$00E
$00F
9