MDT10P41A1 1. General Description transmitters/receivers, pointing devices, and telecommunications processors, such as Remote This EPROM-Based 8-bit Micro-controller uses a controller, small instruments, chargers, fully static CMOS technology to achieve high automobile and PC peripheral … etc. toy, speed, small size, low power and high noise immunity. Internal RC oscillator On chip memory includes 1K words of EPROM, 4. Pin Assignment and 31 bytes of static RAM. 2. Features u Fully CMOS static design u 8-bit data bus u On chip ROM size :1 K words u Internal RAM size : 31 bytes MDT10P41A1P / MDT10P41A1S PB4 PB5 PB6 PB7 Vdd NC NC PA0 (25 general purpose registers, 6 special registers) u 34 single word instructions u 14-bit instructions u 2-level stacks u Operating voltage : 2.3V ~ 5.5 V u Addressing modes include direct, indirect 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 PB3 PB2 PB1 PB0 Vss PA3 PA2 PA1 and relative addressing modes u Power-on Reset u Internal RC oscillator : 6.5MHz ~ 7.5MHz u 12 I/O pins with their own independent direction control 3. Applications The application areas of this MDT10P41A1 range from appliance motor control and high speed automotive to low power remote This specification is subject to be changed without notice. Please visit our web site for the most updated information. http://www.mdtic.com.tw 1 of 11 2005/6 Ver.1.6 MDT10P41A1 5. Block Diagram Stack Two Levels RAM 25×8 EPROM 1024×14 Port A 10 bits Program Counters 10 bits Port PA0~PA3 4 bits 14 bits Instruction Register Special Register Port PB0 D0~D7 Port PB1 Port B Instruction Decoder Control Circuit Internal RC Data 8bit Power on Reset Power Down Reset Working Register ALU Status Register This specification is subject to be changed without notice. Please visit our web site for the most updated information. http://www.mdtic.com.tw 2 of 11 2005/6 Ver.1.6 Port PB2 ~PB3 Port PB4 ~PB7 MDT10P41A1 6. Pin Function Description Pin Name I/O Function Description PA0 I/O Open drain ouput pin with 130K ohm pull-high resistor for input. PA1~PA3 I/O Port A, TTL input level. PA1-PA3 are I/O pins with 50K ohm pull-high resistor for input. PB0 I/O I/O pin with 10K ohm pull-high resistor for input. PB1 I/O Open drain output with 10K ohm pull-high resistor for input. PB2~PB3 I/O Port B, TTL input level. PB2-PB3 are I/O pins with 35K ohm pull-low resistors for input. PB4~PB7 I/O Port B, TTL input level Vdd Power supply Vss Ground 7. Memory Map (A) Register Map Address Description 00 Indirect Addressing Register 01 Unimplemented 02 PC 03 STATUS 04 MSR 05 Port A 06 Port B 07~1F Internal RAM, General Purpose Register This specification is subject to be changed without notice. Please visit our web site for the most updated information. http://www.mdtic.com.tw 3 of 11 2005/6 Ver.1.6 MDT10P41A1 (1) IAR ( Indirect Address Register) : R0 (2) PC (Program Counter) : R2 Write PC, CALL --- always 0 LJUMP, JUMP, LCALL --- from instruction word RTWI, RET --- from STACK A9 A8 A7~A0 Write PC, JUMP, CALL --- from STATUS b5 (ROM 1K) LJUMP, LCALL --- from instruction word RTWI, RET --- from STACK Write PC --- from ALU LJUMP, JUMP, LCALL, CALL --- from instruction word RTWI, RET --- from STACK (3) STATUS (Status register) : R3 Bit Symbol Function 0 C Carry bit 1 HC Half Carry bit 2 Z Zero bit 3 PF Power loss Flag bit 4 —— Always read as high 5 page 0 Page select bit : 0 : 000H --- 1FFH 1 : 200H --- 3FFH 6—7 —— General purpose bit (4) MSR (Memory Select Register) : R4 (5) PORT A : R5 Bit 3-0 : PA0~PA3, I/O Register 6-4 : Always read as high. 7 : Always read as zero. (6) PORT B : R6 PB7~PB0, I/O Register (7) CPIO A, CPIO B (Control Port I/O Mode Register) The CPIO register is “write-only” ＝“0”, I/O pin in output mode; ＝“1”, I/O pin in input mode. This specification is subject to be changed without notice. Please visit our web site for the most updated information. http://www.mdtic.com.tw 4 of 11 2005/6 Ver.1.6 MDT10P41A1 (8) EPROM Option by writer programming : Security bit Weak Disable Disable Enable The default EPROM security is weak disable. 8. Reset Condition for all Registers Register Address Power-On Reset CPIO A －－ 1111 1111 CPIO B －－ 1111 1111 IAR 00h － PC 02h 1111 1111 STATUS 03h 0001 1xxx MSR 04h 111x xxxx PORT A 05h - 111 xxxx PORT B 06h xxxx xxxx Note : “ x “＝unknown, “ – “＝unimplemented, read as “0” 9. Instruction Set Instruction Code Mnemonic Operands Function Operating 010000 00000000 NOP No operation None 010000 00000010 SLEEP Sleep mode 0→WT, Status TF, PF stop OSC 010000 00000100 RET Return Stack→PC None 010000 00000rrr CPIO R Control I/O port register W→CPIO r None 010001 1rrrrrrr STWR R Store W to register W→R None 011000 trrrrrrr LDR R, t Load register R→t Z 111010 iiiiiiii LDWI I Load immediate to W I→W None 010111 trrrrrrr SWAPR R, t Swap halves register [R(0~3) ↔ R(4~7)]→t None 011001 trrrrrrr INCR R, t Increment register R + 1→t Z This specification is subject to be changed without notice. Please visit our web site for the most updated information. http://www.mdtic.com.tw 5 of 11 2005/6 Ver.1.6 MDT10P41A1 Instruction Code Mnemonic Operands Function Operating Status 011010 trrrrrrr INCRSZ R, t Increment register, skip if zero R + 1→t None 011011 trrrrrrr ADDWR R, t Add W and register W + R→t C, HC, Z 011100 trrrrrrr SUBWR R, t Subtract W from register R ﹣W→t (R+/W+1→t) C, HC, Z 011101 trrrrrrr DECR R, t Decrement register R ﹣1→t Z 011110 trrrrrrr DECRSZ R, t Decrement register, skip if zero R ﹣1→t None 010010 trrrrrrr ANDWR R, t AND W and register R ∩ W→t Z 110100 iiiiiiii ANDWI i AND W and immediate i ∩ W→W Z 010011 trrrrrrr IORWR R, t Inclu. OR W and register R ∪ W→t Z 110101 iiiiiiii IORWI i Inclu. OR W and immediate i ∪ W→W Z 010100 trrrrrrr XORWR R, t Exclu. OR W and register R ⊕ W→t Z 110110 iiiiiiii XORWI i Exclu. OR W and immediate i ⊕ W→W Z 011111 trrrrrrr COMR R, t Complement register /R→t Z 010110 trrrrrrr RRR R, t Rotate right register R(n) →R(n-1), C →R(7), R(0)→C C 010101 trrrrrrr RLR R, t Rotate left register R(n)→r(n+1), C C→R(0), R(7)→C 010000 1xxxxxxx CLRW Clear working register 0→W Z 010001 0rrrrrrr CLRR Clear register 0→R Z 0000bb brrrrrrr BCR R, b Bit clear 0→R(b) None 0010bb brrrrrrr BSR R, b Bit set 1→R(b) None 0001bb brrrrrrr BTSC R, b Bit Test, skip if clear Skip if R(b)=0 None 0011bb brrrrrrr BTSS R, b Bit Test, skip if set Skip if R(b)=1 None 1000nn nnnnnnnn LCALL n Long CALL subroutine n→PC, None R PC+1→Stack 1010nn nnnnnnnn LJUMP n Long JUMP to address n→PC None 110000 nnnnnnnn CALL Call subroutine n→PC, None n PC+1→Stack 110001 iiiiiiii RTWI i Return, place immediate to W Stack→PC, None i→W 11001n nnnnnnnn JUMP n JUMP to address n→PC None Note : W CPIO HC Z C PF PC OSC : : : : : : : : Working register Control I/O port register Half carry Zero flag Carry flag Power loss flag Program Counter Oscillator b : t : R i n Bit position Target 0 : Working register 1 : General register : : : General register address Immediate data ( 8 bits ) Immediate address This specification is subject to be changed without notice. Please visit our web site for the most updated information. http://www.mdtic.com.tw 6 of 11 2005/6 Ver.1.6 MDT10P41A1 Inclu. Exclu. AND : : : Inclusive ‘∪’ Exclusive ‘⊕’ Logic AND ‘∩’ / x : : Complement Don’t care 10. Electrical Characteristics (Operating temperature at 25℃). Sym Description Condition Min Vdd Operating voltage 2.3 Fosc Internal RC oscillator frequency Vdd=5V 6.5 VIL Typ 7 Max Unit 5.5 V 7.5 MHz Input Low Voltage PA, PB Vdd=5V -0.6 1.0 V PA, PB Vdd=5V 2.0 Vdd V IIL Input leakage current Vdd=5V +/-1 µA VOL Output Low Voltage VIH Input high Voltage PA, PB Vdd=5V, IOL=20mA 0.5 V Vdd=5V, IOL=5mA 0.2 V Vdd=5V, IOH= -20mA 4.0 V Vdd=5V, IOH= -5mA 4.7 V VOH Output High Voltage PA, PB Vpr Power Edge-detector Reset 1.2 1.5 V Voltage This specification is subject to be changed without notice. Please visit our web site for the most updated information. http://www.mdtic.com.tw 7 of 11 2005/6 Ver.1.6 MDT10P41A1 11. (A)PA0 Equivalent Circuit D PA0: Pull_Hi130K Q I/O Control Latch I/O Control QB CK Port I/O Pin D Data O/P Latch Write Q B G Data Bus D QB Input Resistor Data I/P Latch Read TTL Input Level G (B)PA1~PA3 Equivalent Circuit D PA1~3: Pull_Hi 50K Q I/O Control Latch I/O Control QB CK Port I/O Pin D Data O/P Latch Write G QB Data Bus D QB Read Input Resistor Data I/P Latch TTL Input Level G This specification is subject to be changed without notice. Please visit our web site for the most updated information. http://www.mdtic.com.tw 8 of 11 2005/6 Ver.1.6 MDT10P41A1 12. (A) PB0 Equivalent Circuit D Q Pull_Hi 10K I/O Control Latch I/O Control QB CK Port I/O Pin D Data O/P Latch Write G QB Data Bus D QB Input Resistor Data I/P Latch Read TTL Input Level G (B) PB1 Equivalent Circuit D Q Pull_Hi 10K I/O Control Latch I/O Control CK QB Port I/O Pin D Data O/P Latch Write G QB Data Bus D QB Read Data I/P Latch Input Resistor TTL Input Level G This specification is subject to be changed without notice. Please visit our web site for the most updated information. http://www.mdtic.com.tw 9 of 11 2005/6 Ver.1.6 MDT10P41A1 (C) PB2 ~ PB3 Equivalent Circuit D Q I/O Control Latch I/O Control CK QB Port I/O Pin D Data O/P Latch Write G PULL- LOW 35 K QB Data Bus D QB Read Data I/P Latch Input Resistor TTL Input Level G This specification is subject to be changed without notice. Please visit our web site for the most updated information. http://www.mdtic.com.tw 10 of 11 2005/6 Ver.1.6 MDT10P41A1 (D) PB4 ~ PB7 Equivalent Circuit D Q I/O Control Latch I/O Control QB CK Port I/O Pin D Data O/P Latch Write G QB Data Bus D QB Read Data I/P Latch Input Resistor TTL Input Level G This specification is subject to be changed without notice. Please visit our web site for the most updated information. http://www.mdtic.com.tw 11 of 11 2005/6 Ver.1.6