MDT2030CF资料

合集下载
  1. 1、下载文档前请自行甄别文档内容的完整性,平台不提供额外的编辑、内容补充、找答案等附加服务。
  2. 2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。
  3. 3、如文档侵犯您的权益,请联系客服反馈,我们会尽快为您处理(人工客服工作时间:9:00-18:30)。
00 : Page 0, 000H --- 1FFH 01 : Page 1, 200H --- 3FFH 10 : Page 2, 400H --- 5FFH 11 : Page 3, 600H --- 7FFH General purpose bit
This specification are subject to be changed without notice. Any latest information
Bit
2—0 3 4 5
Symbol
PS2—0 PSC TCE TCS
Function
Prescaler Value
RTCC rate
WDT rate
000
1:2
1:1
001
1:4
1:2
010
1:8
1:4
011
1 : 16
1:8
100
1 : 32
1 : 16
101
1 : 64
1 : 32
110
1 : 128
please preview http;//
P. 3
2007/8 Ver. 1.6
元器件交易网
(3) PC (Program Counter) : R2
A10
A9
MDT2030(CF)
Write PC, CALL --- always 0 JUMP --- from instruction word RTWI, RET --- from STACK
(1) IAR ( Indirect Address Register) : R0 (2) RTCC (Real Time Counter/Counter Register) : R1
This specification are subject to be changed without notice. Any latest information
P rogra m Counte rs
Ins truction Re gis te r
OSC2 O S C 1 MCLR
Os cilla tor Circuit
Ins truction De code r
MDT2030(CF)
R AM 7 3 X8
P ort P A0~P A3
4 bits
P ort A
1 : 64
111
1 : 256
1 : 128
Prescaler assignment bit : 0 — RTCC
1 — Watchdog Timer
RTCC signal Edge : 0 — Increment on low-to-high transition on RTCC pin
1 — Increment on high-to-low transition on RTCC pin
Power-on Reset (POR),only available while PED is Disable
Power edge-detector Reset Sleep Mode for power saving 4 types of oscillator can be selected by programming option: RC-Low cost RC oscillator LFXT-Low frequency crystal oscillator XTAL-Standard crystal oscillator HFXT-High frequency crystal oscillator 4 oscillator start-up time can be selected by programming option: 150 μs, 20 ms, 40 ms, 80 ms
I/O Port A, TTL input level
I/O Port B, TTL input level
I Real Time Clock/Counter, Schmitt Trigger input levels
I Master Clear, Schmitt Trigger input levels
RTCC signal set : 0 — Internal instruction cycle clock
(4) STATUS (Status register) : R3
Bit
0 1 2 3 4 6—5
7
Symbol
C HC Z PF TF page
——
Function
Carry wer loss Flag bit WDT Timer overflow Flag bit ROM page select bit :
8-bit Tim e r/Counte r
P re s ca le
RTCC
WDT/OS T Tim e r
This specification are subject to be changed without notice. Any latest information
please preview http;//
8-bit real time clock/counter(RTCC) with 8-bit programmable prescaler On-chip RC oscillator based Watchdog Timer(WDT) 12 I/O pins with their own independent direction control
b7
b6
b5
b4
b3
MDT2030(CF)
b2
b1
b0
Read only “1”
(6) PORT A : R5 PA3~PA0, I/O Register
(7) PORT B : R6 PB7~PB0, I/O Register
(8) TMR (Time Mode Register)
Indirect Addressing Mode
3. Applications
The application areas of this MDT2030 range from appliance motor control and high speed automotive to low power remote transmitters /receivers, pointing devices, and telecommunications processors, such as Remote controller, small instruments, chargers, toy, automobile and PC peripheral … etc.
S pe cia l Re gis te r D0~D7
Control Circuit
P ort P B0~P B7
8 bits
P ort B
Power on Reset Power Down Re set
Working Re gis te r ALU
Da ta 8 -b it
S ta tus Re gis te r
Fully CMOS static design 8-bit data bus On chip EPROM size : 2.0 K words Internal RAM size : 80 bytes
(73 general purpose registers, 7 special registers) 36 single word instructions 14-bit instructions 2-level stacks Operating voltage : 2.3 V ~ 6.0 V Operating frequency : 0 ~ 20 MHz The most fast execution time is 200 ns under 20 MHz in all single cycle instructions except the branch instruction Addressing modes include direct, indirect and relative addressing modes
P. 2
2007/8 Ver. 1.6
元器件交易网
6. Pin Function Description
MDT2030(CF)
Pin Name PA0~PA3 PB0~PB7
RTCC /MCLR OSC1 OSC2
Vdd Vss
I/O
Function Description
RTCC 3
18 OSC1
/MCLR 4
17 OSC2
VSS 5
16 VDD
VSS 6
15 VDD
PB0 7
14 PB7
PB1 8
13 PB6
PB2 9
12 PB5
PB3 10
11 PB4
This specification are subject to be changed without notice. Any latest information
please preview http;//
P. 1
2007/8 Ver. 1.6
元器件交易网
5. Block Diagram
S ta ck Two Le ve ls 11 bits
EPROM 2 0 4 8 X1 4
11 bits
14 b its
元器件交易网
MDT2030(CF)
1. General Description
This ROM-Based 8-bit micro-controller uses a fully static CMOS technology process to achieve high speed, small size, the low power and high noise immunity. On chip memory includes 2K words EPROM, and 80 bytes static RAM. 2. Features The followings are some of the features on the hardware and software :
please preview http;//
P. 4
2007/8 Ver. 1.6
元器件交易网
(5) MSR (Memory Bank Select Register) : R4
Memory Bank Select Register : 00 : 10~1F 01 : 30~3F 10 : 50~5F 11 : 70~7F
I Oscillator Input
O Oscillator Output
Power supply
Ground
7. Memory Map
(A) Register Map
Address 00 01 02 03 04 05 06
07~1F 30~3F 50~5F 70~7F
Description Indirect Addressing Register RTCC PC STATUS MSR Port A Port B Internal RAM, Memory bank 0 Internal RAM, Memory bank 1 Internal RAM, Memory bank 2 Internal RAM, memory bank 3
A8
A7~A0
Write PC, JUMP, CALL --- from STATUS b6 b5 RTWI, RET --- from STACK
Write PC --- from ALU JUMP, CALL --- from instruction word RTWI, RET --- from STACK
4. Pin Assignment
DIP / SOP
PA2 1
18
PA3 2
17
RTCC 3
16
/MCLR 4
15
Vss 5
14
PB0 6
13
PB1 7
12
PB2 8
11
PB3 9
10
PA1 PA0 OSC1 OSC2 Vdd PB7 PB6 PB5 PB4
SSOP
PA2 1
20 PA1
PA3 2
19 PA0
相关文档
最新文档