MITSUBISHI MICROCOMPUTERS 7532 Group SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER • DESCRIPTION The 7532 Group is the 8-bit microcomputer based on the 740 family core technology. The 7532 Group has a USB, 8-bit timers, and an A-D converter, and is useful for an input device for personal computer peripherals. FEATURES • • • (connect to external ceramic resonator or quartz-crystal oscillator ) • Basic machine-language instructions ....................................... 69 • The minimum instruction execution time .......................... 0.34 µs • • (at 6 MHz oscillation frequency for the shortest instruction) • Memory size ................................................................................. • • • Serial I/O1 ................................ used only for Low Speed in USB (USB/UART) Serial I/O2 ...................................................................... 8-bit ✕ 1 (Clock-synchronized) A-D converter ................................................ 10-bit ✕ 8 channels Clock generating circuit ............................................. Built-in type ROM ............................................... 8K to 16K bytes RAM .............................................. 256 to 384 bytes Programmable I/O ports ...................................... 28 (36-pin type) ............................................................................ 24 (32-pin type) Interrupts .................................................... 13 sources, 8 vectors Timers ............................................................................ 8-bit ✕ 3 • • Watchdog timer ............................................................ 16-bit ✕ 1 Power source voltage At 6 MHz XIN oscillation frequency at ceramic resonator ................................................................................... 4.1 to 5.5 V Power dissipation ............................................ 30 mW (standard) Operating temperature range ................................... –20 to 85 °C APPLICATION Input device for personal computer peripherals PIN CONFIGURATION (TOP VIEW) P27/AN7 VREF RESET CNVSS Vcc XIN XOUT VSS 1 36 2 35 3 34 4 5 6 7 8 9 10 11 12 13 14 15 M37532M4-XXXFP M37532E8FP P12/SCLK P13/SDATA P14/CNTR0 P20/AN0 P21/AN1 P22/AN2 P23/AN3 P24/AN4 P25/AN5 P26/AN6 33 32 31 30 29 28 27 26 25 24 23 22 16 21 17 20 18 19 Package type: 36P2R-A Fig. 1 Pin configuration of M37532M4-XXXFP,M37532E8FP P11/TXD/D+ P10/RXD/DP07 P06 P05 P04 P03 P02 P01 P00 USBVREFOUT P37/INT0 P35(LED5) P34(LED4) P33(LED3) P32(LED2) P31(LED1) P30(LED0) MITSUBISHI MICROCOMPUTERS 7532 Group SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER 17 18 19 20 21 22 25 16 26 15 27 14 28 M37532M4-XXXGP 8 P22/AN2 P23/AN3 P24/AN4 P25/AN5 VREF RESET CNVSS VCC 7 9 6 32 5 10 4 31 3 30 2 12 11 Outline 32P6B-A Fig. 2 Pin configuration of M37532M4-XXXGP 2 13 29 1 P07 P10/RXD/DP11/TXD/D+ P12/SCLK P13/SDATA P14/CNTR0 P20/AN0 P21/AN1 23 24 P06 P05 P04 P03 P02 P01 P00 USBVREFOUT PIN CONFIGURATION (TOP VIEW) P34(LED4) P33(LED3) P32(LED2) P31(LED1) P30(LED0) VSS XOUT XIN MITSUBISHI MICROCOMPUTERS 7532 Group SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER PIN CONFIGURATION (TOP VIEW) 1 42 2 41 3 40 4 39 5 38 6 37 7 36 8 9 10 11 12 13 14 15 M37532RSS P14/CNTR0 NC NC P20/AN0 P21/AN1 NC P22/AN2 P23/AN3 P24/AN4 P25/AN5 P26/AN6 P27/AN7 NC NC VREF RESET CNVSS Vcc XIN XOUT VSS 35 34 33 32 31 30 29 28 16 27 17 26 18 25 19 24 20 23 21 22 P13/SDATA P12/SCLK P11/TXD/D+ P10/RXD/DP07 P06 P05 P04 P03 P02 P01 P00 USBVREFOUT P37/INT0 NC P35(LED5) P34(LED4) P33(LED3) P32(LED2) P31(LED1) P30(LED0) Outline 42S1M Fig. 3 Pin configuration of M37532RSS 3 Fig. 4 Functional block diagram 4 VREF 12 A-D converter (10) Watchdog timer Reset Clock generating circuit 17 16 Clock output XOUT XIN Clock input 0 PC H I/O port P3 I/O port P2 11 10 9 8 7 6 5 4 25 24 23 22 21 20 19 PS PC L S Y X A SI/O1(8) USB(LS) 26 USBV REFOUT P2(8) INT0 ROM P3(7) RAM 15 18 C P U VCC VSS SI/O2(8) I/O port P1 3 2 1 36 35 P1(5) CNTR0 13 RESET Reset input P0(8) Timer X (8) Timer 2 (8) Timer 1 (8) I/O port P0 34 33 32 31 30 29 28 27 Prescaler X (8) Prescaler 12 (8) 14 CNVSS Key-on wake up FUNCTIONAL BLOCK DIAGRAM (Package: 36P2R) MITSUBISHI MICROCOMPUTERS 7532 Group SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER FUNCTIONAL BLOCK VREF 5 A-D converter (10) Watchdog timer Reset Clock generating circuit 10 9 Clock output XOUT XIN Clock input I/O port P3 16 15 14 13 12 P3(5) RAM ROM 0 PC H I/O port P2 4 3 2 1 32 31 P2(6) 8 11 PS PC L S Y X A 17 USBV REFOUT SI/O1(8) USB(LS) C P U VCC VSS SI/O2(8) I/O port P1 30 29 28 27 26 P1(5) CNTR0 6 RESET Reset input P0(8) Timer X (8) Timer 2 (8) Timer 1 (8) I/O port P0 25 24 23 22 21 20 19 18 Prescaler X (8) Prescaler 12 (8) 7 CNVSS Key-on wake up FUNCTIONAL BLOCK DIAGRAM (Package: 32P6B-A) MITSUBISHI MICROCOMPUTERS 7532 Group SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER Fig. 5 Functional block diagram 5 MITSUBISHI MICROCOMPUTERS 7532 Group SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER PIN DESCRIPTION Table 1 Pin description Pin Name Function Vcc, Vss Power source •Apply voltage of 4.1 to 5.5 V to Vcc, and 0 V to Vss. VREF Analog reference voltage •Reference voltage input pin for A-D converter USBVREFOUT USB reference voltage output •Output pin for pulling up a D- line with 1.5 kΩ external resistor CNVss CNVss •Chip operating mode control pin, which is always connected to Vss. RESET Reset input •Reset input pin for active “L” XIN Clock input •Input and output pins for main clock generating circuit XOUT Clock output P00–P0 7 I/O port P0 Function expect a port function •Connect a ceramic resonator or quartz crystal oscillator between the XIN and X OUT pins. •If an external clock is used, connect the clock source to the XIN pin and leave the XOUT pin open. •8-bit I/O port. •I/O direction register allows each pin to be individually programmed as either input or output. •Key-input (key-on wake up interrupt input) pins •CMOS compatible input level •CMOS 3-state output structure •Whether a built-in pull-up resistor is to be used or not can be determined by program. P10/RxD/D- I/O port P1 •5-bit I/O port •Serial I/O1 function pin P12/S CLK •I/O direction register allows each pin to be individually programmed as either input or output. •Serial I/O2 function pin P13/S DATA •CMOS compatible input level P14/CNTR0 •CMOS 3-state output structure P11/TxD/D+ •Timer X function pin •CMOS/TTL level can be switched for P10, P12, P13. •When using the USB function, input level of ports P10 and P11 becomes USB input level, and output level of them becomes USB output level. P20/AN0– P27/AN7 I/O port P2 P30–P3 5 I/O port P3 •8-bit I/O port having almost the same function as P0 •Input pins for A-D converter •CMOS compatible input level •CMOS 3-state output structure •7-bit I/O port •I/O direction register allows each pin to be individually programmed as either input or output. •CMOS compatible input level (CMOS/TTL level can be switched for P37). •CMOS 3-state output structure P37/INT 0 6 •P30 to P35 can output a large current for driving LED. •Whether a built-in pull-up resistor is to be used or not can be determined by program. •Interrupt input pins MITSUBISHI MICROCOMPUTERS 7532 Group SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER GROUP EXPANSION Mitsubishi plans to expand the 7532 group as follow: Memory type Support for Mask ROM version, One Time PROM version, and Emulator MCU . Memory size ROM/PROM size .................................................. 8 K to 16 K bytes RAM size ................................................................256 to 384 bytes Package 36P2R-A ..................................... 0.8 mm-pitch plastic molded SOP 32P6B-A .................................... 0.8 mm-pitch plastic molded LQFP 42SIM ...................................... 42 pin shrink ceramic PIGGY BACK ROM size (Byte) 16K M37532E8 8K M37532M4 128 0 256 384 RAM size (Byte) Fig. 6 Memory expansion plan Currently supported products are listed below. Table 2 List of supported products Product (P) ROM size (bytes) ROM size for User () RAM size (bytes) Package M37532M4-XXXFP 8192 (8062) 256 36P2R-A Mask ROM version 8192 (8062) 256 32P6B-A Mask ROM version 16384 (16254) 384 36P2R-A One Time PROM version (blank) 384 42S1M M37532M4-XXXGP M37532E8FP M37532RSS Remarks Emulator MCU 7 MITSUBISHI MICROCOMPUTERS 7532 Group SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER FUNCTIONAL DESCRIPTION [CPU Mode Register] CPUM The CPU mode register contains the stack page selection bit. This register is allocated at address 003B 16. Central Processing Unit (CPU) The 7532 Group uses the standard 740 family instruction set. Refer to the table of 740 family addressing modes and machine-language instructions or the 740 Family Software Manual for details on each instruction set. Machine-resident 740 family instructions are as follows: 1. The FST and SLW instructions cannot be used. 2. The MUL and DIV instructions cannot be used. 3. The WIT instruction can be used. 4. The STP instruction can be used. b7 b0 CPU mode register (CPUM: address 003B 16) Processor mode bits b1 b0 0 0 Single-chip mode 0 1 1 0 Not available 1 1 Stack page selection bit 0 : 0 page 1 : 1 page Not used (returns “0” when read) (Do not write “1” to these bits ) Main clock division ratio selection bits b7 b6 0 0 : f(φ) = f(X IN)/2 (High-speed mode) 0 1 : f(φ) = f(X IN)/8 (Middle-speed mode) 1 0 : applied from ring oscillator 1 1 : f(φ) = f(X IN) (Double-speed mode) Fig. 7 Structure of CPU mode register Switching method of CPU mode register Switch the CPU mode register (CPUM) at the head of program after releasing Reset in the following method. After releasing reset Start with a built-in ring oscillator (Note) Wait until establish ceramic oscillator clock. Switch the clock division ratio selection bits (bits 6 and 7 of CPUM) Switch to other mode except a ring oscillator (Select one of 1/1, 1/2, and 1/8) Main routine Note. After releasing reset the operation starts by starting a ring oscillator automatically. Do not use a ring oscillator at ordinary operation. Fig. 8 Switching method of CPU mode register 8 MITSUBISHI MICROCOMPUTERS 7532 Group SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER Memory Special function register (SFR) area The SFR area in the zero page contains control registers such as I/O ports and timers. RAM RAM is used for data storage and for a stack area of subroutine calls and interrupts. ROM The first 128 bytes and the last 2 bytes of ROM are reserved for device testing and the rest is a user area for storing programs. Interrupt vector area The interrupt vector area contains reset and interrupt vectors. Zero page The 256 bytes from addresses 000016 to 00FF16 are called the zero page area. The internal RAM and the special function registers (SFR) are allocated to this area. The zero page addressing mode can be used to specify memory and register addresses in the zero page area. Access to this area with only 2 bytes is possible in the zero page addressing mode. Special page The 256 bytes from addresses FF0016 to FFFF16 are called the special page area. The special page addressing mode can be used to specify memory addresses in the special page area. Access to this area with only 2 bytes is possible in the special page addressing mode. 000016 SFR area Zero page 004016 RAM 010016 RAM area RAM capacity (bytes) address XXXX16 256 384 013F16 01BF16 XXXX16 Reserved area 044016 Not used YYYY16 Reserved ROM area (128 bytes) ZZZZ16 ROM FF0016 ROM area ROM capacity (bytes) address YYYY16 address ZZZZ16 8192 16384 E00016 C00016 E08016 C08016 Special page FFEC16 Interrupt vector area FFFE16 FFFF16 Reserved ROM area Fig. 9 Memory map diagram 9 MITSUBISHI MICROCOMPUTERS 7532 Group SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER 000016 Port P0 (P0) 002016 USB interrupt control register (USBICON) 000116 Port P0 direction register (P0D) 002116 USB transmit data byte number set register 0 (EP0BYTE) 000216 Port P1 (P1) 002216 USB transmit data byte number set register 1 (EP1BYTE) 000316 Port P1 direction register (P1D) 002316 USBPID control register 0 (EP0PID) 000416 Port P2 (P2) 002416 USBPID control register 1 (EP1PID) 000516 Port P2 direction register (P2D) 002516 USB address register (USBA) 000616 Port P3 (P3) 002616 USB sequence bit initialization register (INISQ1) 000716 Port P3 direction register (P3D) 002716 USB control register (USBCON) 000816 002816 Prescaler 12 (PRE12) 000916 002916 Timer 1 (T1) 000A16 002A16 Timer 2 (T2) 000B16 002B16 Timer X mode register (TM) 000C16 002C16 Prescaler X (PREX) 000D16 002D16 Timer X (TX) 000E16 002E16 Timer count source set register (TCSS) 000F16 002F16 001016 003016 Serial I/O2 control register (SIO2CON) 001116 003116 Serial I/O2 register (SIO2) 001216 003216 001316 003316 001416 003416 A-D control register (ADCON) 001516 003516 A-D conversion register (low-order) (ADL) A-D conversion register (high-order) (ADH) 001616 Pull-up control register (PULL) 003616 001716 Port P1P3 control register (P1P3C) 003716 001816 Transmit/Receive buffer register (TB/RB) 003816 MISRG 001916 USB status register (USBSTS)/UART status register (UARTSTS) 003916 Watchdog timer control register (WDTCON) 001A16 Serial I/O1 control register (SIO1CON) 003A16 Interrupt edge selection register (INTEDGE) 001B16 UART control register (UARTCON) 003B16 CPU mode register (CPUM) 001C16 Baud rate generator (BRG) 003C16 Interrupt request register 1 (IREQ1) 001D16 USB data toggle synchronization register ( TRSYNC) 003D16 001E16 USB interrupt source discrimination register 1 (USBIR1) 003E16 001F16 USB interrupt source discrimination register 2 (USBIR2) 003F16 Fig. 10 Memory map of special function register (SFR) 10 Interrupt control register 1 (ICON1) MITSUBISHI MICROCOMPUTERS 7532 Group SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER I/O Ports [Direction registers] PiD The I/O ports have direction registers which determine the input/output direction of each pin. Each bit in a direction register corresponds to one pin, and each pin can be set to be input or output. When “1” is set to the bit corresponding to a pin, this pin becomes an output port. When “0” is set to the bit, the pin becomes an input port. When data is read from a pin set to output, not the value of the pin itself but the value of port latch is read. Pins set to input are floating, and permit reading pin values. If a pin set to input is written to, only the port latch is written to and the pin remains floating. b7 [Pull-up control] PULL By setting the pull-up control register (address 001616), ports P0 and P3 can exert pull-up control by program. However, pins set to output are disconnected from this control and cannot exert pull-up control. [Port P1P3 control] P1P3C By setting the port P1P3 control register (address 001716), a CMOS input level or a TTL input level can be selected for ports P10, P12, P13, and P37 by program. Then, set “1” to each bit 6 of the port P3 direction register and port P3 register. b0 Pull-up control register (PULL: address 0016 16) P00 pull-up control bit P01 pull-up control bit P02, P03 pull-up control bit P04 – P07 pull-up control bit P30 – P33 pull-up control bit P34 pull-up control bit P35 pull-up control bit P37 pull-up control bit 0: Pull-up off 1: Pull-up on Initial value: FF16 Note : Pins set to output ports are disconnected from pull-up control. Fig. 11 Structure of pull-up control register b7 b0 Port P1P3 control register (P1P3C: address 0017 16) P37/INT 0 input level selection bit 0 : CMOS level 1 : TTL level Not used (Do not write “1” to this bit) P10,P1 2,P13 input level selection bit 0 : CMOS level 1 : TTL level Not used Fig. 12 Structure of port P1P3 control register 11 MITSUBISHI MICROCOMPUTERS 7532 Group SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER Table 3 I/O port function table Pin Name Input/output P00–P07 P10/RxD/D- I/O port P0 I/O individual bits I/O format •CMOS compatible input level Non-port function Related SFRs Key input interrupt Pull-up control register •CMOS 3-state output Diagram No. (1) •USB input/output level when selecting USB function Serial I/O1 function input/output Serial I/O1 control register (2) P11/TxD/D+ P12/S CLK •CMOS compatible input level •CMOS 3-state output Serial I/O2 control register (4) P13/SDATA Serial I/O2 function input/output P14/CNTR0 (Note) Timer X function input/output Timer X mode register (6) A-D conversion input A-D control register (7) I/O port P1 P20/AN0– P27/AN7 I/O port P2 P30–P35 I/O port P3 P37/INT0 Note: Port P3 7 is CMOS/TTL level. 12 (3) (5) (8) External interrupt input Interrupt edge selection register (9) MITSUBISHI MICROCOMPUTERS 7532 Group SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER (2) Port P10 (1) Port P0 Serial I/O1 mode selection bit (b7) Serial I/O1 mode selection bit (b6) Receive enable bit Pull-up control Direction register Data bus Serial I/O1 mode selection bit (b7) Serial I/O1 mode selection bit (b6) Direction register Port latch Data bus Port latch P10,P12,P13 input level selection bit To key input interrupt generating circuit Serial I/O1 input ₎ (3) Port P11 D- input P-channel output disable bit D- output Serial I/O1 mode selection bit (b7) Serial I/O1 mode selection bit (b6) USB output enable (internal signal) Serial I/O1 mode selection bit (b7) Serial I/O1 mode selection bit (b6) Transmit enable bit Direction register Data bus Port latch + USB differential input Serial I/O1 output D+ input D+ output USB output enable (internal signal) (5) Port P13 (4) Port P12 Signals during the SDATA output action SDATA pin selection bit SCLK pin selection bit Direction register Direction register Data bus Port latch Data bus Port latch SDATA pin selection bit P10,P12,P13 input level selection bit P10,P12,P13 input level selection bit Serial I/O2 clock output Serial I/O2 clock input Serial I/O2 clock output ₎ Serial I/O2 clock input ₎ ₎ P10, P12, P13 input levels are switched to the CMOS/TTL level by the port P1P3 control register. When the TTL level is selected, there is no hysteresis characteristics. Fig. 13 Block diagram of ports (1) 13 MITSUBISHI MICROCOMPUTERS 7532 Group SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER (7) Ports P20 – P27 (32-pin version: Ports P20 – P25) (6) Port P14 Direction register Data bus Port latch Direction register Data bus Pulse output mode Timer output Port latch A-D conversion input Analog input pin selection bit CNTR0 interrupt input (8) Ports P30 – P35 (32-pin version: Ports P30 – P34) (9) Port P37 (only for 36-pin version) Pull-up control Pull-up control Direction register Data bus Port latch Direction register Data bus Port latch P37/INT0 input level selection bit INT interrupt input ₎ ₎ P37 input level is switched to the CMOS/TTL level by the port P1P3 control register. When the TTL level is selected, there is no hysteresis characteristics. Fig. 14 Block diagram of ports (2) 14 MITSUBISHI MICROCOMPUTERS 7532 Group SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER Interrupts Interrupts occur by 13 different sources : 3 external sources, 9 internal sources and 1 software source. Interrupt control All interrupts except the BRK instruction interrupt have an interrupt request bit and an interrupt enable bit, and they are controlled by the interrupt disable flag. When the interrupt enable bit and the interrupt request bit are set to “1” and the interrupt disable flag is set to “0”, an interrupt is accepted. The interrupt request bit can be cleared by program but not be set. The interrupt enable bit can be set and cleared by program. It becomes usable by switching CNTR 0 and AD interrupt sources with bit 7 of the interrupt edge selection register, timer 2 and serial I/ O2 interrupt sources with bit 6, and timer X and key-on wake-up interrupt sources with bit 5. The reset and BRK instruction interrupt can never be disabled with any flag or bit. All interrupts except these are disabled when the interrupt disable flag is set. When several interrupts occur at the same time, the interrupts are received according to priority. Interrupt operation Upon acceptance of an interrupt the following operations are automatically performed: 1. The processing being executed is stopped. 2. The contents of the program counter and processor status register are automatically pushed onto the stack. 3. The interrupt disable flag is set and the corresponding interrupt request bit is cleared. 4. Concurrently with the push operation, the interrupt destination address is read from the vector table into the program counter. Notes on use When the active edge of an external interrupt (INT0, CNTR0) is set, the interrupt request bit may be set. Therefore, please take following sequence: 1. Disable the external interrupt which is selected. 2. Change the active edge in interrupt edge selection register. (in case of CNTR0: Timer X mode register) 3. Clear the set interrupt request bit to “0”. 4. Enable the external interrupt which is selected. Table 4 Interrupt vector address and priority Interrupt source Vector addresses (Note 1) Priority High-order Low-order Interrupt request generating conditions Remarks Reset (Note 2) 1 FFFD16 FFFC16 At reset input Non-maskable UART receive 2 FFFB16 FFFA16 At completion of UART data receive Valid in UART mode At detection of IN token Valid in USB mode At completion of UART transmit shift or when transmit buffer is empty Valid in UART mode At detection of SETUP/OUT token or At detection of Reset/ Suspend/ Resume Valid in USB mode External interrupt (active edge selectable) USB IN token UART transmit 3 FFF9 16 FFF8 16 USB SETUP/OUT token Reset/Suspend/Resume INT0 4 FFF7 16 FFF6 16 At detection of either rising or falling edge of INT0 input Timer X 5 FFF5 16 FFF4 16 At timer X underflow Key-on wake-up Timer 1 Timer 2 A-D conversion External interrupt (valid at falling) STP release timer underflow 6 FFF3 16 FFF2 16 At timer 1 underflow 7 FFF1 16 FFF0 16 At timer 2 underflow Serial I/O2 CNTR0 At falling of conjunction of input logical level for port P0 (at input) At completion of transmit/receive shift 8 FFEF16 FFEE16 At detection of either rising or falling edge of CNTR0 input External interrupt (active edge selectable) At completion of A-D conversion BRK instruction At BRK instruction execution 9 FFED16 FFEC16 Note 1: Vector addressed contain internal jump destination addresses. Non-maskable software interrupt 2: Reset function in the same way as an interrupt with the highest priority. 15 MITSUBISHI MICROCOMPUTERS 7532 Group SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER Interrupt request bit Interrupt enable bit Interrupt disable flag I BRK instruction Reset Interrupt request Fig. 15 Interrupt control b7 b0 Interrupt edge selection register (INTEDGE : address 003A16) INT0 interrupt edge selection bit 0 : Falling edge active 1 : Rising edge active Not used (returns “0” when read) (Do not write “1” to these bits) Timer X or key-on wake up interrupt selection bit 0 : Timer X 1 : Key-on wake up Timer 2 or serial I/O2 interrupt selection bit 0 : Timer 2 1 : Serial I/O2 CNTR0 or AD converter interrupt selection bit 0 : CNTR0 1 : AD converter b7 b0 Interrupt request register 1 (IREQ1 : address 003C16) UART receive/USB IN token interrupt request bit UART transmit/USB SETUP/OUT token/ reset/Suspend/Resume interrupt request bit INT0 interrupt request bit Timer X or key-on wake up interrupt request bit Timer 1 interrupt request bit Timer 2 or serial I/O2 interrupt request bit CNTR0 or AD converter interrupt request bit 0 : No interrupt request issued Not used (returns “0” when read) 1 : Interrupt request issued b7 b0 Interrupt control register 1 (ICON1 : address 003E16) UART receive/USB IN token interrupt enable bit UART transmit/USB SETUP/OUT token/ reset/Suspend/Resume interrupt enable bit INT0 interrupt enable bit Timer X or key-on wake up interrupt enable bit Timer 1 interrupt enable bit Timer 2 or serial I/O2 interrupt enable bit CNTR0 or AD converter interrupt enable bit Not used (returns “0” when read) 0 : Interrupts disabled (Do not write “1” to this bit) 1 : Interrupts enabled Fig. 16 Structure of Interrupt-related registers 16 MITSUBISHI MICROCOMPUTERS 7532 Group SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER Key Input Interrupt (Key-On Wake-Up) A key-on wake-up interrupt request is generated by applying “L” level to any pin of port P0 that has been set to input mode. In other words, it is generated when the AND of input level goes from “1” to “0”. An example of using a key input interrupt is shown in Figure 17, where an interrupt request is generated by pressing one of the keys provided as an active-low key matrix which uses ports P00 to P03 as input ports. Port PXx “L” level output PULL register bit 3 = “0” * ** P07 output Port P07 Direction register = “1” Falling edge detection PULL register bit 3 = “0” * ** P06 output Port P06 Direction register = “1” Port P06 latch Falling edge detection PULL register bit 3 = “0” * ** P05 output Port P05 Direction register = “1” Port P05 latch Falling edge detection PULL register bit 3 = “0” * ** P04 output Port P04 Direction register = “1” Port P04 latch PULL register bit 2 = “1” * ** P03 input * ** P02 input Falling edge detection Port P03 Direction register = “0” Port P03 latch PULL register bit 2 = “1” Port P0 Input read circuit Falling edge detection Port P02 Direction register = “0” Port P02 latch Falling edge detection PULL register bit 1 = “1” * ** P01 input Port P01 Direction register = “0” Port P01 latch Falling edge detection PULL register bit 0 = “1” * P00 input Key input interrupt request Port P07 latch ** Port P00 Direction register = “0” Port P00 latch Falling edge detection * P-channel transistor for pull-up ** CMOS output buffer Fig. 17 Connection example when using key input interrupt and port P0 block diagram 17 MITSUBISHI MICROCOMPUTERS 7532 Group SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER Timers The 7532 Group has 3 timers: timer X, timer 1 and timer 2. The division ratio of every timer and prescaler is 1/(n+1) provided that the value of the timer latch or prescaler is n. All the timers are down count timers. When a timer reaches “0”, an underflow occurs at the next count pulse, and the corresponding timer latch is reloaded into the timer. When a timer underflows, the interrupt request bit corresponding to each timer is set to “1”. b7 b0 Timer X mode register (TM : Address 002B 16) Timer X operating mode bits b1 b0 0 0 : Timer mode 0 1 : Pulse output mode 1 0 : Event counter mode 1 1 : Pulse width measurement mode CNTR0 active edge switch bit 0 : Interrupt at falling edge Count at rising edge (in event counter mode) 1 : Interrupt at rising edge Count at falling edge (in event counter mode) ●Timer 1, Timer 2 Prescaler 12 always counts f(XIN)/16. Timer 1 and timer 2 always count the prescaler output and periodically sets the interrupt request bit. Timer X count stop bit 0 : Count start 1 : Count stop ●Timer X Timer X can be selected in one of 4 operating modes by setting the timer X mode register. • Timer Mode The timer counts the signal selected by the timer X count source selection bit. • Pulse Output Mode The timer counts the signal selected by the timer X count source selection bit, and outputs a signal whose polarity is inverted each time the timer value reaches “0”, from the CNTR 0 pin. When the CNTR0 active edge switch bit is “0”, the output of the CNTR 0 pin is started with an “H” output. At “1”, this output is started with an “L” output. When using a timer in this mode, set the port P1 4 direction register to output mode. • Event Counter Mode The operation in the event counter mode is the same as that in the timer mode except that the timer counts the input signal from the CNTR 0 pin. When the CNTR 0 active edge switch bit is “0”, the timer counts the rising edge of the CNTR 0 pin. When this bit is “1”, the timer counts the falling edge of the CNTR 0 pin. • Pulse Width Measurement Mode When the CNTR0 active edge switch bit is “0”, the timer counts the signal selected by the timer X count source selection bit while the CNTR0 pin is “H”. When this bit is “1”, the timer counts the signal while the CNTR0 pin is “L”. In any mode, the timer count can be stopped by setting the timer X count stop bit to “1”. Each time the timer overflows, the interrupt request bit is set. 18 Not used (return “0” when read) Fig. 18 Structure of timer X mode register b7 b0 Timer count source set register (TCSS : Address 002E 16) Timer X count source selection bit (Note) 0 : f(X IN)/16 1 : f(X IN)/2 Not used (return “0” when read) Note : To switch the timer X count source selection bit , stop the timer X count operation. Fig. 19 Timer count source set register MITSUBISHI MICROCOMPUTERS 7532 Group SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER Data bus f(XIN)/16 f(XIN)/2 Prescaler X latch (8) Timer X count source selection bit Pulse width measurement mode CNTR0 active edge switch bit “0” P14/CNTR0 Timer mode pulse output mode Prescaler X (8) Event counter mode Timer X latch (8) Timer X (8) To timer X interrupt request bit Timer X count stop bit To CNTR0 interrupt request bit “1” CNTR0 active edge switch bit “1” Q Q “0” Toggle flip-flop R T Timer X latch write Pulse output mode Port P14 latch Port P14 direction register Pulse output mode Data bus f(XIN)/16 Prescaler 12 latch (8) Timer 1 latch (8) Timer 2 latch (8) Prescaler 12 (8) Timer 1 (8) Timer 2 (8) To timer 2 interrupt request bit To timer 1 interrupt request bit Fig. 20 Block diagram of timer X, timer 1 and timer 2 19 MITSUBISHI MICROCOMPUTERS 7532 Group SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER Serial I/O ●Serial I/O1 • Asynchronous serial I/O (UART) mode Serial I/O1 can be used as an asynchronous (UART) serial I/O. A dedicated timer (baud rate generator) is also provided for baud rate generation when serial I/O1 is in operation. Eight serial data transfer formats can be selected, and the transfer formats to be used by a transmitter and a receiver must be identical. Each of the transmit and receive shift registers has a buffer register (the same address on memory). Since the shift register cannot be written to or read from directly, transmit data is written to the transmit buffer, and receive data is read from the respective buffer registers. These buffer registers can also hold the next data to be transmitted and receive 2-byte receive data in succession. By selecting “1” for continuous transmit valid bit (bit 2 of SIO1CON), continuous transmission of the same data is made possible. This can be used as a simplified PWM. Data bus Address (001816) Serial I/O1 control register Address (001A 16) Receive buffer full flag (RBF) Receive Buffer Register OE Receive interrupt request (RI) Character length selection bit P10/RXD ST Detector 7-bit Receive Shift Register 1/16 8-bit PE FE UART Control Register Address (001B 16) SP Detector Clock Control Circuit BRG count source selection bit Division ratio 1/(n+1) XIN Baud Rate Generator Address (001C 16) 1/4 ST/SP/PA Generator Transmit shift register shift completion flag (TSC) 1/16 P11/TXD Transmit interrupt source selection bit Transmit interrupt request (TI) Transmit Shift Register Character length selection bit Transmit buffer empty flag (TBE) Transmit Buffer Register Address (001816) Continuous transmit valid bit Serial I/O1 status register Address (0019 16) Data bus Fig. 21 Block diagram of UART serial I/O Transmit/Receive Clock Transmit Buffer Register Write Signal TBE=0 TSC=0 TBE=1 Serial Output T XD TBE=0 TBE=1 ST D0 D1 SP TSC=1* ST D0 D1 1 Start Bit 7 or 8 Data Bit 1 or 0 Parity Bit 1 or 2 Stop Bit Receive Buffer Register Read Signal SP * Generated at second bit in 2-stop -bit mode RBF=0 RBF=1 Serial Input RXD ST D0 D1 SP RBF=1 ST D0 D1 SP Notes 1 : Error flag detection occurs at the same time that the RBF flag becomes “1” (at 1st stop bit, during reception). 2 : The transmit interrupt (TI) can be selected to occur when either the TBE or TSC flag becomes “1”, depending on the setting of the transmit interrupt source selection bit (TIC) of the serial I/O1 control register. 3 : The receive interrupt (RI) is set when the RBF flag becomes “1”. 4 : After data is written to the transmit buffer when TSC = 1, 0.5 to 1.5 cycles of the data shift cycle is necessary until changing to TSC = 0. Fig. 22 Operation of UART serial I/O function 20 MITSUBISHI MICROCOMPUTERS 7532 Group SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER [Serial I/O1 control register] SIO1CON The serial I/O1 control register consists of eight control bits for the serial I/O1 function. [Baud Rate Generator] BRG The baud rate generator determines the baud rate for serial transfer. The baud rate generator divides the frequency of the count source by 1/(n + 1), where n is the value written to the baud rate generator. [UART control register] UARTCON The UART control register consists of four control bits (bits 0 to 3) which are valid when asynchronous serial I/O is selected and set the data format of an data transfer. One bit in this register (bit 4) is always valid and sets the output structure of the P1 1/TxD pin. [UART status register] UARTSTS The read-only UART status register consists of seven flags (bits 0 to 6) which indicate the operating status of the UART function and various errors. This register functions as the UART status register (UARTSTS) when selecting the UART. The receive buffer full flag (bit 1) is cleared to “0” when the receive buffer is read. If there is an error, it is detected at the same time that data is transferred from the receive shift register to the receive buffer, and the receive buffer full flag is set. A write to the UART status register clears all the error flags OE, PE, FE, and SE (bit 3 to bit 6, respectively). Writing “0” to the serial I/O1 mode selection bits MOD1 and MOD0 (bit 7 and 6 of the Serial I/O1 control register ) also clears all the status flags, including the error flags. All bits of the serial I/O1 status register are initialized to “81 16” at reset, but if the transmit enable bit (bit 4) of the serial I/O1 control register has been set to “1”, the continuous transmit valid bit (bit 2) becomes “1”. [Transmit/Receive buffer register] TB/RB The transmit buffer and the receive buffer are located at the same address. The transmit buffer is write-only and the receive buffer is read-only. If a character bit length is 7-bit, the MSB of data stored in the receive buffer is “0”. Transmit/Receive Clock Transmit Buffer Register Write Signal TBE=0 TSC=0 TBE=1 Serial Output T XD ST D0 D1 SP ST D0 D1 SP ST 1 Start Bit 7 or 8 Data Bit 1 or 0 Parity Bit 1 or 2 Stop Bit Notes 1 : When the serial I/O1 mode selection bits (b7, b6) is “10”, the transmit enable bit is “1”, and continuous transmit valid bit is “1”, writing on the transmit buffer initiates continuous transmission of the same data. 2 : Select 0 for continuous transmit valid bit to stop continuous transmission. The T XD pin will stop at high level after completing transmission of 1 byte. 3 : If the transmit buffer contents are rewritten during a continuous transmission, transmission of the rewritten data will be started after completing transmission of 1 byte. Fig. 23 Continuous transmission operation of UART serial I/O 21 MITSUBISHI MICROCOMPUTERS 7532 Group SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER • Universal serial bus (USB) mode By setting bits 7 and 6 of the serial I/O1 control register (address 001A 16) to “11”, the USB mode is selected. This mode conforms to “Low Speed device” of USB Specification 1.0. In this mode serial I/O1 interrupt have 5 sources; USB in and out token receive, USB reset, suspend, and resume. The USB status/UART status register functions as the USB status register (USBSTS).There is the USBVREFOUT pin for the USB reference voltage output, and a D-line with 1.5 kΩ external resistor can be pull up. USB mode block and USB transceiver block show in figures 24 and 25. Data bus Address 001816 1.5 MHz 6 MHz XIN RxRDY Receive buffer register NRZI, bit stuffing decoder Digital PLL Receive shift register SYNC decoder BSTFE EOP Differential input and Single end input PID decoder Bus state detection Reset interrupt request RxPID OPID PIDE P10/DP11/D+ Suspend interrupt request Address comparative unit USB transceiver Resume interrupt request Token interrupt request USBA End pointer decoder RxEP Output data and I/O control CRC check CRCE NRZI, bit stuffing encoder Transmit shift register USB transmit unit SYNC, PID generating unit CRC encoder Transmit buffer register EOP generating unit TxRDY EP0PID EP1PID EP0BYTE EP1BYTE Address 001816 Data bus Fig. 24 USB mode block diagram Serial I/O1 control register MOD0 MOD1 USB control register USBVREFOUT output valid flag (initial value “0”) Output enable signal Voltage input Output amplifier USBVREFOUT USB reference power source voltage Voltage input Internal D- output signal Internal D+ output signal Suspend OE (internal signal) D+ Signal for function stop Output enable signal Differential input Single end input Single end input Fig. 25 USB transceiver block diagram 22 D- D+/Doutput amplifier + MITSUBISHI MICROCOMPUTERS 7532 Group SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER b7 b0 Transmit buffer register (TB: address 0018 16) After setting data to address 0018 16, a content of the transmit buffer register transfers to the transmit shift register automatically. CPU read: Disabled CPU write: Set/Clear Hardware read: Used Hardware write: Not used b7 b0 Receive buffer register (RB: address 0018 16) By reading data from address 0018 16, a content of the receive buffer register can be read out. CPU read: Enabled CPU write: Disabled Hardware read: Not used Hardware write: Set/Clear b7 b0 USB status register (USBSTS: address 0019 16) Transmit buffer empty flag 0: Buffer full 1: Buffer empty CPU read: Enabled CPU write: Disabled Hardware read: Not used Hardware write: Set/Clear EOP detection flag 0: Not detected 1: Detect False EOP error flag 0: No error 1: False EOP error CRC error flag 0: No error 1: CRC error PID error flag 0: No error 1: PID error CPU read: Enabled CPU write: Clear Hardware read: Not used Hardware write: Set Bit stuffing error flag 0: No error 1: Bit stuffing error Summing error flag 0: No error 1: Summing error Receive buffer full flag 0: Buffer empty 1: Buffer full CPU read: Enabled CPU write: Disabled Hardware read: Not used Hardware write: Set/Clear Fig. 26 Structure of serial I/O1-related registers (1) 23 MITSUBISHI MICROCOMPUTERS 7532 Group SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER b7 b0 USB data toggle synchronization register (TRSYNC: address 001D 16) Not used (return “1” when read) Sequence bit toggle flag 0: No toggle 1: Sequence toggle b7 CPU read: Enabled CPU write: Clear Hardware read: Not used Hardware write: Set b0 USB interrupt source discrimination register 1 (USBIR1: address 001E 16) Not used (return “1” when read) Endpoint determination flag 0: Endpoint 0 interrupt 1: Endpoint 1 interrupt b7 CPU read: Enabled CPU write: Disabled Hardware read: Not used Hardware write: Set/Clear b0 USB interrupt source discrimination register 2 (USBIR2: address 001F 16) Not used (return “1” when read) Suspend request flag 0: No request 1: Suspend request CPU read: Enabled CPU write: Clear Hardware read: Not used Hardware write: Set USB reset request flag 0: No request 1: Reset request CPU read: Enabled CPU write: Disabled Hardware read: Not used Hardware write: Set/Clear Not used (return “1” when read) Token PID determination flag 0: SETUP interrupt 1: OUT interrupt Token interrupt flag 0: No request 1: Token request b7 CPU read: Enabled CPU write: Disabled Hardware read: Not used Hardware write: Set/Clear b0 USB interrupt control register (USBICON: address 0020 16) Not used (return “1” when read) Endpoint 1 enable 0: Endpoint 1 invalid 1: Endpoint 1 valid USB reset interrupt enable 0: USB reset invalid 1: USB reset valid Resume interrupt enable 0: Resume invalid 1: Resume valid Token interrupt enable 0: Token invalid 1: Token valid USB enable flag 0: USB invalid 1: USB valid Fig. 27 Structure of serial I/O1-related registers (2) 24 CPU read: Enabled CPU write: Set/Clear Hardware read: Used Hardware write: Not used MITSUBISHI MICROCOMPUTERS 7532 Group SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER b7 b0 USB transmit data byte number set register 0 (EP0BYTE: address 0021 16) Set a number of data byte for transmitting with endpoint 0. CPU read: Enabled CPU write: Set/Clear Hardware read: Used Hardware write: Not used Not used (return “0” when read) b7 b0 USB transmit data byte number set register 1 (EP1BYTE: address 0022 16) Set a number of data byte for transmitting with endpoint 1. CPU read: Enabled CPU write: Set/Clear Hardware read: Used Hardware write: Not used Not used (return “0” when read) b7 b0 USB PID control register 0 (EP0PID: address 0023 16) Not used (return “1” when read) Endpoint 0 enable flag 0: Endpoint 0 invalid 1: Endpoint 0 valid CPU read: Enabled CPU write: Set/Clear Hardware read: Used Hardware write: Not used Endpoint 0 PID selection flag 1xxx: IN token interrupt of DATA0/1 is valid 01xx: STALL handshake is valid for IN token 00xx: NACK handshake is valid for IN token xxx1: STALL handshake is valid for OUT token xx10: ACK handshake is valid for OUT token xx00: NACK handshake is valid for OUT token b4, b5, b6 CPU read: Enabled CPU write: Set/Clear Hardware read: Used Hardware write: Not used x: any data b7 b7 CPU read: Enabled CPU write: Set/Clear Hardware read: Used Hardware write: Clear b0 USB PID control register 1 (EP1PID: address 0024 16) Not used (return “1” when read) Endpoint 1 PID selection flag 1x: IN token interrupt of DATA0/1 is valid 01: STALL handshake is valid for IN token 00: NACK handshake is valid for IN token x: any data b7 b6 CPU read: Enabled CPU write: Set/Clear Hardware read: Used Hardware write: Not used b7 CPU read: Enabled CPU write: Set/Clear Hardware read: Used Hardware write: Clear b0 USB address register (USBA: address 0025 16) Set an address allocated by the USB host. CPU read: Disabled CPU write: Set/Clear Hardware read: Used Hardware write: Not used Not used (returns “1” when read) Fig. 28 Structure of serial I/O1-related registers (3) 25 MITSUBISHI MICROCOMPUTERS 7532 Group SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER b7 b0 USB sequence bit initialization register (INISQ1: address 0026 16) A sequence bit of endpoint 1 is initialized. CPU read: Disabled CPU write: Dummy Hardware read: Not used Hardware write: Not used b7 b0 USB control register (USBCON: address 0027 16) Not used (return “1” when read) b7 USBVREFOUT output valid flag 0: Output off 1: Output on CPU read: Disabled CPU write: Set/Clear Hardware read: Used Hardware write: Not used Remote wake up request flag 0: No request 1: Remote wake up request CPU read: Disabled CPU write: Set Hardware read: Used Hardware write: Clear b0 UART status register (UARTSTS: address 0019 16) Transmit buffer empty flag 0: Buffer full 1: Buffer empty Receive buffer full flag 0: Buffer empty 1: Buffer full CPU read: Enabled CPU write: Disabled Hardware read: Not used Hardware write: Set/Clear Transmit shift register shift completion flag 0: Transmit shift in progress 1: Transmit shift completed Overrun error flag 0: No error 1: Overrun error Parity error flag 0: No error 1: Parity error Framing error flag 0: No error 1: Framing error CPU read: Enabled CPU write: Clear Hardware read: Not used Hardware write: Set Summing error flag 0: No error 1: Summing error Not used (returns “1” when read) b7 b0 Baud rate generator (BRG: address 001C 16) This register is valid only when selecting the UART mode. A baud rate value is set. CPU read: Disabled CPU write: Set/Clear Hardware read: Used Hardware write: Not used Fig. 29 Structure of serial I/O1-related registers (4) 26 MITSUBISHI MICROCOMPUTERS 7532 Group SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER b7 b0 UART control register (UARTCON: address 001B 16) Character length selection bit 0: 8 bits 1: 7 bits Parity enable bit 0: Parity checking disabled 1: Parity checking enabled Parity selection bit 0: Even parity 1: Odd parity CPU read: Disabled CPU write: Set/Clear Hardware read: Used Hardware write: Not used Stop bit length selection bit 0: 1 stop bit 1: 2 stop bits P-channel output disable bit 0: CMOS output 1: N-channel open-drain output Not used (returns “1” when read) b7 b0 Serial I/O1 control register (SIO1CON: address 001A 16) BRG count source selection bit 0: f(XIN) 1: f(XIN)/4 CPU read: Disabled CPU write: Set/Clear Hardware read: Used Hardware write: Not used Not used (returns “1” when read) Continuous transmit valid bit 0: Continuous transmit invalid 1: Continuous transmit valid Transmit interrupt source selection bit 0: Interrupt when transmit buffer has emptied 1: Interrupt when transmit shift operation is completed Transmit enable bit 0: Transmit disabled 1: Transmit enabled CPU read: Disabled CPU write: Set/Clear Hardware read: Used Hardware write: Not used Receive enable bit 0: Receive disabled 1: Receive enabled Serial I/O1 mode selection bits 00: I/O port 01: Not available 10: UART mode 11: USB mode Fig. 30 Structure of serial I/O1-related registers (5) 27 MITSUBISHI MICROCOMPUTERS 7532 Group SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER Note on using USB mode Handling of SE0 signal in program (at receiving) 7532 group has the border line to detect as USB RESET or EOP (End of Packet) on the width of SE0 (Single Ended 0). A response apposite to a state of the device is expected. The name of the following short words which is used in table 5 shows as follow. •TKNE: Token interrupt enable (bit 6 of address 2016 ) •RSME: Resume interrupt enable (bit 5 of address 2016) •RSTE: USB reset interrupt enable (bit 4 of address 2016) •Spec: A response of the device requested by USB Specification 1.0 •SIE: Hardware operation in 7532 group •F/W: Recommendation process in the program •FEOPE: False EOP error flag (bit 2 of address 1916) •RxPID: Token interrupt flag (bit 7 of address 1F16 ) Table 5 Relation of the width of SE0 and the state of the device Idle state TKNE = X Width of SE0 RSME = 0 RSTE =1 Spec 0 µ sec. 0.5 µ sec. 0.5 µ sec. Ignore Ignore Ignore Keep counting suspend timer Not detected as EOP(in case of no detection EOP, SIE returns idle state as time out. FEOPE flag is set.) Not detected as EOP(in case of no detection EOP, SIE returns idle state as timeup. FEOPE flag is set.) SIE F/W Not acknowledge Not acknowledge Wait for the next EOP flag Spec Keep alive EOP EOP Initialize suspend timer count value Token interrupt request Set EOP flag Not acknowledge Token interrupt processing execute After checking the set of EOP flag, go to the next processing Keep alive or Reset EOP or Reset EOP or Reset may determine as keep alive and Reset interrupt may determine as EOP and Reset interrupt may determine as EOP and Reset interrupt Keep alive in case of no interrupt request RxPID = 1> Token interrupt processing Reset processing in case of interrupt request RxPID = 0> Reset interrupt processing Continue the processing in case of no interrupt request Reset Reset Reset SIE Reset interrupt request Reset interrupt request Reset interrupt request F/W Reset processing Reset processing Reset processing SIE 2.5 µ sec. F/W Spec SIE 2.5 µ sec. 2.67 µ sec. F/W Spec 2.67 µ sec. 28 State of device End of Token in transaction End of data or handshake in transaction TKNE = 1 TKNE = 0 RSME = 0 RSME = 0 RSTE =1 RSTE = 0 or 1 Reset processing in case of interrupt request Suspend state TKNE = 0 RSME = 1 RSTE = 0 Spec SIE F/W Reset or resume Reset interrupt request Reset interrupt processing Resume interrupt processing MITSUBISHI MICROCOMPUTERS 7532 Group SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER ●Serial I/O2 b7 The serial I/O2 function can be used only for clock synchronous serial I/O. For clock synchronous serial I/O2 the transmitter and the receiver must use the same clock. When the internal clock is used, transfer is started by a write signal to the serial I/O2 register. b0 Internal synchronous clock selection bits 000 : f(XIN)/8 001 : f(XIN)/16 010 : f(XIN)/32 011 : f(XIN)/64 110 : f(XIN)/128 111 : f(XIN)/256 SDATA pin selection bit (Note) 0 : I/O port/SDATA input 1 : SDATA output [Serial I/O2 control register] SIO2CON The serial I/O2 control register contains 8 bits which control various serial I/O functions. • For receiving, set “0” to bit 3. • When receiving, bit 7 is cleared by writing dummy data to serial I/ O2 register after shift is completed. • Bit 7 is set earlier a half cycle of shift clock than completion of shift operation. Accordingly, when checking shift completion by using this bit, the setting is as follows: (1) check that this bit is set to “1”, (2) wait a half cycle of shift clock, (3) read/write to serial I/O2 register. Serial I/O2 control register (SIO2CON: address 003016) Not used (returns “0” when read) Transfer direction selection bit 0 : LSB first 1 : MSB first SCLK pin selection bit 0 : External clock (SCLK is an input) 1 : Internal clock (SCLK is an output) Transmit / receive shift completion flag 0 : shift in progress 1 : shift completed Note : When using it as an SDATA input, set the port P13 direction register to “0”. Fig. 31 Structure of serial I/O2 control registers Data bus 1/8 1/16 1/32 Divider XIN 1/64 1/128 1/256 SCLK pin selection bit “1” SCLK “0” Internal synchronous clock selection bits SCLK pin selection bit “0” P12/SCLK P12 latch Serial I/O counter 2 (3) “1” Serial I/O2 interrupt request SDATA pin selection bit “0” P13/SDATA P13 latch “1” SDATA pin selection bit Serial I/O shift register 2 (8) Fig. 32 Block diagram of serial I/O2 29 MITSUBISHI MICROCOMPUTERS 7532 Group SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER Serial I/O2 operation By writing to the serial I/O2 register(address 003116) the serial I/O2 counter is set to “7”. After writing, the SDATA pin outputs data every time the transfer clock shifts from a high to a low level. And, as the transfer clock shifts from a low to a high, the SDATA pin reads data, and at the same time the contents of the serial I/O2 register are shifted by 1 bit. When the internal clock is selected as the transfer clock source, the following operations execute as the transfer clock counts up to 8. • Serial I/O2 counter is cleared to “0”. • Transfer clock stops at an “H” level. • Interrupt request bit is set. • Shift completion flag is set. Also, the SDATA pin is in a high impedance state after the data transfer is complete (refer to figure 33). When the external clock is selected as the transfer clock source, the interrupt request bit is set as the transfer clock counts up to 8, but external control of the clock is required since it does not stop. Notice that the SDATA pin is not in a high impedance state on the completion of data transfer. Synchronous clock Transfer clock Serial I/O2 register write signal (Note) SDATA at serial I/O2 output transmit D0 D1 D2 D3 D4 D5 D6 D7 SDATA at serial I/O2 input receive Serial I/O2 interrupt request bit set Note : When the internal clock is selected as the transfer and the direction register of P1 3/SDATA pin is set to the input mode, the SDATA pin is in a high impedance state after the data transfer is completed. Fig. 33 Serial I/O2 timing (LSB first) 30 MITSUBISHI MICROCOMPUTERS 7532 Group SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER A-D Converter b7 The functional blocks of the A-D converter are described below. b0 A-D control register (ADCON : address 0034 16) [A-D conversion register] AD The A-D conversion register is a read-only register that stores the result of A-D conversion. Do not read out this register during an A-D conversion. Analog input pin selection bits 000 : P20/AN0 001 : P21/AN1 010 : P22/AN2 011 : P23/AN3 100 : P24/AN4 101 : P25/AN5 110 : P26/AN6 111 : P27/AN7 [A-D control register] ADCON The A-D control register controls the A-D converter. Bit 2 to 0 are analog input pin selection bits. Bit 4 is the AD conversion completion bit. The value of this bit remains at “0” during A-D conversion, and changes to “1” at completion of A-D conversion. A-D conversion is started by setting this bit to “0”. Not used (returns “0” when read) AD conversion completion bit 0 : Conversion in progress 1 : Conversion completed Not used (returns “0” when read) Fig. 34 Structure of A-D control register [Comparison voltage generator] The comparison voltage generator divides the voltage between V SS and VREF by 1024 by a resistor ladder, and outputs the divided voltages. Since the generator is disconnected from VREF pin and VSS pin, current is not flowing into the resistor ladder. Read 8-bit (Read only address 003516) b7 (Address 003516) [Channel Selector] The channel selector selects one of ports P2 7/AN7 to P2 0/AN0, and inputs the voltage to the comparator. b9 b8 b7 b0 b6 b5 b4 b3 b2 b9 b8 Read 10-bit (read in order address 003616, 003516) b7 b0 (Address 003616) [Comparator and control circuit] The comparator and control circuit compares an analog input voltage with the comparison voltage and stores its result into the A-D conversion register. When A-D conversion is completed, the control circuit sets the AD conversion completion bit and the AD interrupt request bit to “1”. Because the comparator is constructed linked to a capacitor, set f(XIN) to 500 kHz or more during A-D conversion. b7 (Address 003516) b0 b7 b6 b5 b4 b3 b2 b1 b0 High-order 6-bit of address 003616 returns “0” when read. Fig. 35 Structure of A-D conversion register Data bus b7 b0 A-D control register (Address 0034 16 ) 3 A-D control circuit Channel selector P20/AN0 P21/AN1 P22/AN2 P23/AN3 P24/AN4 P25/AN5 P26/AN6 P27/AN7 Comparator A-D interrupt request A-D conversion register (high-order) (Address 0036 16) A-D conversion register (low-order) (Address 0035 16) 10 Resistor ladder VREF VSS Fig. 36 Block diagram of A-D converter 31 MITSUBISHI MICROCOMPUTERS 7532 Group SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER Watchdog Timer Operation of watchdog timer H count source selection bit A watchdog timer H count source can be selected by bit 7 of the watchdog timer control register (address 0039 16). When this bit is “0”, the count source becomes a watchdog timer L underflow signal. The detection time is 174.763 ms at f(XIN)=6 MHz. When this bit is “1”, the count source becomes f(X IN)/16. In this case, the detection time is 683 µs at f(XIN)=6 MHz. This bit is cleared to “0” after reset. The watchdog timer gives a means for returning to a reset status when the program fails to run on its normal loop due to a runaway. The watchdog timer consists of an 8-bit watchdog timer H and an 8bit watchdog timer L, being a 16-bit counter. Standard operation of watchdog timer The watchdog timer stops when the watchdog timer control register (address 003916 ) is not set after reset. Writing an optional value to the watchdog timer control register (address 003916) causes the watchdog timer to start to count down. When the watchdog timer H underflows, an internal reset occurs. Accordingly, it is programmed that the watchdog timer control register (address 003916) can be set before an underflow occurs. When the watchdog timer control register (address 003916) is read, the values of the high-order 6-bit of the watchdog timer H, STP instruction disable bit and watchdog timer H count source selection bit are read. Operation of STP instruction disable bit When the watchdog timer is in operation, the STP instruction can be disabled by bit 6 of the watchdog timer control register (address 003916). When this bit is “0”, the STP instruction is enabled. When this bit is “1”, the STP instruction is disabled, and an internal reset occurs if the STP instruction is executed. Once this bit is set to “1”, it cannot be changed to “0” by program. This bit is cleared to “0” after reset. Initial value of watchdog timer By a reset or writing to the watchdog timer control register (address 0039 16), the watchdog timer H is set to “FF 16” and the watchdog timer L is set to “FF16”. Data bus Write “FF16” to the watchdog timer control register Watchdog timer L (8) 1/16 XIN “0” “1” Watchdog timer H (8) Write “FF16” to the watchdog timer control register Watchdog timer H count source selection bit STP Instruction Disable Bit STP Instruction Reset circuit RESET Internal reset Fig. 37 Block diagram of watchdog timer b7 b0 Watchdog timer control register(address 0039 16) WDTCON Watchdog timer H (read-only for high-order 6-bit) STP instruction disable bit 0 : STP instruction enabled 1 : STP instruction disabled Watchdog timer H count source selection bit 0 : Watchdog timer L underflow 1 : f(XIN)/16 Fig. 38 Structure of watchdog timer control register 32 MITSUBISHI MICROCOMPUTERS 7532 Group SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER Reset Circuit Poweron ______ The microcomputer is put into a reset status by holding the RESET pin at the “L” level for 15 µs or more when the power source voltage is 4.1 to 5.5 V and XIN is in stable oscillation. ______ After that, this reset status is released by returning the RESET pin to the “H” level. The program starts from the address having the contents of address FFFD16 as high-order address and the contents of address FFFC16 as low-order address. Note that the reset input voltage should be 0.82 V or less when the power source voltage passes 4.1 V. RESET VCC Power source voltage 0V Reset input voltage 0V (Note) 0.2 VCC Note : Reset release voltage Vcc = 4.1 V RESET VCC Power source voltage detection circuit Fig. 39 Example of reset circuit Clock from built-in ring oscillator φ RESET RESETOUT SYNC ? Address ? ? Data 8-13 clock cycles ? ? ? ? FFFC ? ? ? FFFD ADL ADH,AD L ADH Reset address from the vector table Notes 1 : A built-in ring oscillator applies about 250 kHz frequency as clock φ at average of Vcc = 5 V. 2 : The mark “?” means that the address is changeable depending on the previous state. 3 : These are all internal signals except RESET Fig. 40 Timing diagram at reset 33 MITSUBISHI MICROCOMPUTERS 7532 Group SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER Address Register contents (1) Port P0 direction register 000116 (2) Port P1 direction register 000316 (3) Port P2 direction register 000516 0016 (4) Port P3 direction register 000716 0016 (5) Pull-up control register 001616 FF16 0016 X X X 0 0 0 0 0 (6) Transmit/Receive buffer register 001816 0 0 0 0 0 0 0 0 (7) USB status/UART status register 001916 1 0 0 0 0 0 0 1 (8) Serial I/O1 control register 001A16 (9) UART control register 001B16 1 1 1 0 0 0 0 0 (10) USB data toggle synchronization register 001D16 0 1 1 1 1 1 1 1 (11) USB interrupt source discrimination register 1 001E16 0 1 1 1 1 1 1 1 (12) USB interrupt source discrimination register 2 001F16 0 1 1 1 0 0 1 1 (13) USB interrupt control register 002016 0 0 0 0 0 1 1 1 (14) USB transmit data byte number set register 0 002116 0016 (15) USB transmit data byte number set register 1 002216 0016 (16) USBPID control register 0 002316 0 0 0 0 0 1 1 1 (17) USBPID control register 1 002416 0 0 1 1 1 1 1 1 (18) USB address register 002516 1 0 0 0 0 0 0 0 (19) USB sequence bit initialization register 002616 1 1 1 1 1 1 1 1 (20) USB control register 002716 0 0 1 1 1 1 1 1 (21) Prescaler 12 002816 FF16 (22) Timer 1 002916 0116 (23) Timer 2 002A16 0016 (24) Timer X mode register 002B16 0016 (25) Prescaler X 002C16 FF16 (26) Timer X 002D16 FF16 (27) Timer count source set register 002E16 0016 (28) Serial I/O2 control register 003016 0016 (29) A-D control register 003416 1016 (30) MISRG 003816 0016 (31) Watchdog timer control register 003916 1 1 1 (32) Interrupt edge selection register 003A16 (33) CPU mode register 003B16 0 0 0 (34) Interrupt request register 1 003C16 0016 (35) Interrupt control register 1 003E16 0016 1 X X (36) Processor status register (37) Program counter (PS) 0216 0 0 1 1 1 0016 1 X 0 X 0 X 0 X 0 X (PCH) Contents of address FFFD 16 (PCL) Contents of address FFFC 16 Note X : Undefined Fig. 41 Internal status of microcomputer at reset 34 MITSUBISHI MICROCOMPUTERS 7532 Group SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER Clock Generating Circuit An oscillation circuit can be formed by connecting a resonator between XIN and XOUT . Use the circuit constants in accordance with the resonator manufacturer's recommended values. No external resistor is needed between XIN and XOUT since a feed-back resistor exists on-chip. XIN XOUT ●Oscillation control • Stop mode When the STP instruction is executed, the internal clock φ stops at an “H” level and the XIN oscillator stops. At this time, timer 1 is set to “01 16” and prescaler 12 is set to “FF 16” when the oscillation stabilization time set bit after release of the STP instruction is “0”. On the other hand, timer 1 and prescaler 12 are not set when the above bit is “1”. Accordingly, set the wait time fit for the oscillation stabilization time of the oscillator to be used. f(XIN)/16 is forcibly connected to the input of prescaler 12. When an external interrupt is accepted, oscillation is restarted but the internal clock φ remains at “H” until timer 1 underflows. As soon as timer 1 underflows, the internal clock φ is supplied. This is because when a ceramic oscillator is used, some time is required until a start of oscillation. In case oscillation is restarted by reset, no wait time is generated. ______ So apply an “L” level to the RESET pin while oscillation becomes stable. • Wait mode If the WIT instruction is executed, the internal clock φ stops at an “H” level, but the oscillator does not stop. The internal clock restarts if a reset occurs or when an interrupt is received. Since the oscillator does not stop, normal operation can be started immediately after the clock is restarted. To ensure that interrupts will be received to release the STP or WIT state, interrupt enable bits must be set to “1” before the STP or WIT instruction is executed. When the STP status is released, prescaler 12 and timer 1 will start counting clock which is XIN divided by 16, so set the timer 1 interrupt enable bit to “0” before the STP instruction is executed. Fig. 42 External circuit of ceramic resonator XIN • Clock mode Operation is started by a built-in ring oscillator after releasing reset. A division ratio (1/1,1/2,1/8) is selected by setting bits 7 and 6 of the CPU mode register after releasing it. XOUT External oscillation circuit Open VCC VSS Fig. 43 External clock input circuit b7 Note For use with the oscillation stabilization set bit after release of the STP instruction set to “1”, set values in timer 1 and prescaler 12 after fully appreciating the oscillation stabilization time of the oscillator to be used. COUT CIN b0 MISRG(Address 0038 16) Oscillation stabilization time set bit after release of the STP instruction 0: Set “0116” in timer1, and “FF 16” in prescaler 12 automatically 1: Not set automatically Reserved bits (return “0” when read) (Do not write “1” to these bits) Not used (return “0” when read) Fig. 44 Structure of MISRG 35 MITSUBISHI MICROCOMPUTERS 7532 Group SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER XIN XOUT Rf Rd Main clock division ratio selection bit Middle-speed, High-speed, double -speed mode 1/2 Prescaler 12 1/2 1/4 Timer 1 Ring oscillator mode Main clock division ratio selection bit Middle-speed mode Timing φ (Internal clock) High-speed mode Double-speed mode Ring oscillator (Note) 1/8 Ring oscillator mode S Q S STP instruction R WIT instruction Q Q S R R STP instruction Reset Interrupt disable flag l Interrupt request Note: Ring oscillator is used only for starting. Fig. 45 Block diagram of system clock generating circuit (for ceramic resonator) 36 MITSUBISHI MICROCOMPUTERS 7532 Group SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER NOTES ON PROGRAMMING NOTES ON USE Processor Status Register Handling of Power Source Pin The contents of the processor status register (PS) after reset are undefined except for the interrupt disable flag I which is “1”. After reset, initialize flags which affect program execution. In particular, it is essential to initialize the T flag and the D flag because of their effect on calculations. In order to avoid a latch-up occurrence, connect a capacitor suitable for high frequencies as bypass capacitor between power source pin (Vcc pin) and GND pin (Vss pin). Besides, connect the capacitor to as close as possible. For bypass capacitor which should not be located too far from the pins to be connected, a ceramic capacitor of 0.01 µF to 0.1 µF is recommended. Interrupts The contents of the interrupt request bit do not change even if the BBC or BBS instruction is executed immediately after they are changed by program because this instruction is executed for the previous contents. For executing the instruction for the changed contents, execute one instruction before executing the BBC or BBS instruction. Handling of USBVREFOUT Pin Decimal Calculations One Time PROM Version • For calculations in decimal notation, set the decimal mode flag D to “1”, then execute the ADC instruction or SBC instruction. In this case, execute SEC instruction, CLC instruction or CLD instruction after executing one instruction before the ADC instruction or SBC instruction. • In the decimal mode, the values of the N (negative), V (overflow) and Z (zero) flags are invalid. The CNVss pin is connected to the internal memory circuit block by a low-ohmic resistance, since it has the multiplexed function to be a programmable power source pin (VPP pin) as well. To improve the noise reduction, connect a track between CNVss pin and Vss pin with 1 to 10 kΩ resistance. The mask ROM version track of CNVss pin has no operational interference even if it is connected via a resistor. In order to prevent the instability of the USBVREFOUT output due to external noise, connect a capacitor as bypass capacitor between USBVREFOUT pin and GND pin (VSS pin). Besides, connect the capacitor to as close as possible. For bypass capacitor, a ceramic or electrolytic capacitor of 0.1 µF is recommended. Timers • When n (0 to 255) is written to a timer latch, the frequency division ratio is 1/(n+1). • When a count source of timer X is switched, stop a count of timer X. Ports • The values of the port direction registers cannot be read. That is, it is impossible to use the LDA instruction, memory operation instruction when the T flag is “1”, addressing mode using direction register values as qualifiers, and bit test instructions such as BBC and BBS. It is also impossible to use bit operation instructions such as CLB and SEB and read/modify/write instructions of direction registers for calculations such as ROR. For setting direction registers, use the LDM instruction, STA instruction, etc. • Set "1" to each bit 6 of the port P3 direction register and the port P3 register. A-D Converter The comparator uses internal capacitors whose charge will be lost if the clock frequency is too low. Make sure that f(XIN) is 500kHz or more during A-D conversion. Do not execute the STP instruction during A-D conversion. Instruction Execution Timing The instruction execution time can be obtained by multiplying the frequency of the internal clock φ by the number of cycles mentioned in the machine-language instruction table. The frequency of the internal clock φ is the same as that of the XIN in double-speed mode, twice the XIN cycle in high-speed mode and 8 times the XIN cycle in middle-speed mode. 37 MITSUBISHI MICROCOMPUTERS 7532 Group SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER DATA REQUIRED FOR MASK ORDERS ROM PROGRAMMING METHOD The following are necessary when ordering a mask ROM production: The built-in PROM of the blank One Time PROM version can be read or programmed with a general-purpose PROM programmer using a special programming adapter. Set the address of PROM programmer in the user ROM area. (1) Mask ROM Order Confirmation Form (2) Mark Specification Form (3) Data to be written to ROM, in EPROM form (three identical copies) Table 6 Special programming adapter Package Name of Programming Adapter 36P2R-A PCA7535FP The PROM of the blank One Time PROM version is not tested or screened in the assembly process and following processes. To ensure proper operation after programming, the procedure shown in Figure 46 is recommended to verify programming. Programming with PROM programmer Screening (Caution) (150 °C for 40 hours) Verification with PROM programmer Functional check in target device Caution: The screening temperature is far higher than the storage temperature. Never expose to 150 °C exceeding 100 hours. Fig. 46 Programming and testing of One Time PROM version 38 MITSUBISHI MICROCOMPUTERS 7532 Group SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER ELECTRICAL CHARACTERISTICS Absolute Maximum Ratings Table 7 Absolute maximum ratings Parameter Symbol VCC Power source voltage VI Input voltage P00–P0 7, P1 0–P14, P2 0–P27, P3 0– P35, P3 7, VREF ____________ VI Input voltage RESET, XIN VI Input voltage CNVSS (Note 1) Conditions All voltages are based on VSS. Output transistors are cut off. Ratings Unit –0.3 to 7.0 V –0.3 to VCC + 0.3 V –0.3 to VCC + 0.3 V –0.3 to 13 V –0.3 to VCC + 0.3 V VO Output voltage Pd Power dissipation 300 (Note 2) mW Topr Operating temperature –20 to 85 °C Storage temperature –40 to 125 °C Tstg P00–P0 7, P1 0–P14, P2 0–P27, P3 0– P35, P3 7, XOUT, USBVREFOUT Ta = 25°C Notes 1: It is a rating only for the One Time PROM version. Connect to VSS for the Mask ROM version. 2: 200 mW for 32-pin version. 39 MITSUBISHI MICROCOMPUTERS 7532 Group SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER Recommended Operating Conditions Table 8 Recommended operating conditions (VCC = 4.1 to 5.5 V, Ta = –20 to 85 °C, unless otherwise noted) Symbol Limits Parameter VCC Power source voltage VSS Power source voltage VREF Analog reference voltage VIH “H” input voltage P00–P0 7, P10–P1 4, P20 –P27, P30–P3 5, P37 VIH “H” input voltage (TTL input level selected) P10, P1 2, P13, P3 7 f(XIN) = 6 MHz Min. Typ. Max. 4.1 5.0 5.5 0 ____________ Unit V V 2.0 VCC V 0.8 VCC VCC V 2.0 VCC V 0.8 VCC VCC V VIH “H” input voltage RESET, XIN VIH “H” input voltage D+, D- 2.0 3.6 V VIL “L” input voltage P00–P0 7, P10–P1 4, P20 –P27, P30–P3 5, P37 0 0.3 VCC V VIL “L” input voltage (TTL input level selected) P1 0, P1 2, P13, P3 7 ____________ 0 0.8 V VIL “L” input voltage RESET, CNVSS 0 0.2 VCC V VIL “L” input voltage D+, D- 0 0.8 V VIL “L” input voltage XIN 0 0.16VCC V ∑IOH(peak) “H” total peak output current (Note 1) P00–P0 7, P10–P1 4, P20 –P27, P30–P3 5, P37 –80 mA ∑IOL(peak) “L” total peak output current (Note 1) P00–P0 7, P10–P1 4, P20 –P27, P37 80 mA ∑IOL(peak) “L” total peak output current (Note 1) P30–P3 5 60 mA ∑IOH(avg) “H” total average output current (Note 1) P00–P0 7, P10–P1 4, P20 –P27, P30–P3 5, P37 –40 mA ∑IOL(avg) “L” total average output current (Note 1) P00–P0 7, P10–P1 4, P20 –P27, P37 40 mA ∑IOL(avg) “L” total average output current (Note 1) P30–P3 5 30 mA I OH(peak) “H” peak output current (Note 2) P00–P0 7, P10–P1 4, P20 –P27, P30–P3 5, P37 –10 mA I OL(peak) “L” peak output current (Note 2) P00–P0 7, P10–P1 4, P20 –P27, P37 10 mA I OL(peak) “L” peak output current (Note 2) P30–P3 5 30 mA I OH(avg) “H” average output current (Note 3) P00–P0 7, P10–P1 4, P20 –P27, P30–P3 5, P37 –5 mA I OL(avg) “L” average output current (Note 3) P00–P0 7, P10–P1 4, P20 –P27, P37 5 mA I OL(avg) “L” average output current (Note 3) P30–P3 5 f(X IN) Internal clock oscillation frequency (Note 4) at ceramic oscillation or external clock input VCC = 4.1 to 5.5 V Double-speed mode 15 mA 6 MHz Note 1: The total output current is the sum of all the currents flowing through all the applicable ports. The total average current is an average value measured over 100 ms. The total peak current is the peak value of all the currents. 2: The peak output current is the peak current flowing in each port. 3: The average output current IOL (avg), IOH (avg) in an average value measured over 100 ms. 4: When the oscillation frequency has a duty cycle of 50 %. 40 MITSUBISHI MICROCOMPUTERS 7532 Group SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER Electrical Characteristics Table 9 Electrical characteristics (1) (VCC = 4.1 to 5.5 V, VSS = 0 V, Ta = –20 to 85 °C, unless otherwise noted) Symbol VOH Parameter “H” output voltage P00–P07, P1 0–P14, P2 0–P27 , P30–P35, P3 7 (Note 1) Test conditions Limits Min. Typ. Max. Unit IOH = –5 mA VCC = 4.1 to 5.5 V VCC–1.5 V IOH = –1.0 mA VCC = 4.1 to 5.5 V VCC–1.0 V VOH “H” output voltage D+, D- VCC = 4.40 to 5.25 V Pull-down through 15kΩ ±5% for D+, DPull-up through 1.5kΩ ±5% by USBVREFOUT for D- (Ta = 0 to 70 °C) VOL “L” output voltage P00–P07, P1 0–P14, P2 0–P27 , P37 3.6 V IOL = 5 mA VCC = 4.1 to 5.5 V 1.5 V IOL = 1.5 mA VCC = 4.1 to 5.5 V 0.3 V 2.8 VOL “L” output voltage D+, D- VCC = 4.40 to 5.25 V Pull-down through 15kΩ ±5% for D+, DPull-up through 1.5kΩ ±5% by USBVREFOUT for D- (Ta = 0 to 70 °C) 0.3 V VOL “L” output voltage P30–P35 IOL = 15 mA VCC = 4.1 to 5.5 V 2.0 V IOL = 1.5 mA VCC = 4.1 to 5.5 V 0.3 V VT+–VT– Hysteresis D+, D– 0.15 V VT+–VT– Hysteresis CNTR0, INT0 (Note 2), P00–P07(Note 3) 0.4 V VT+–VT– Hysteresis R XD, SCLK, SDATA (Note 2) 0.5 V VT+–VT– Hysteresis RESET 0.5 IIH “H” input current P0 0–P07, P1 0–P14, P2 0–P27 , P30–P35, P3 7 VI = VCC (Pin floating. Pull up transistors “off”) IIH “H” input current RESET VI = VCC V 5.0 µA 5.0 µA µA I IH “H” input current XIN VI = VCC I IL “L” input current P00–P07, P1 0–P14, P2 0–P27 , P30–P35, P3 7 VI = VSS (Pin floating. Pull up transistors “off”) –5.0 µA IIL “L” input current RESET, CNVSS VI = VSS –5.0 µA IIL “L” input current XIN VI = VSS I IL “L” input current P00–P07, P3 0–P35, P3 7 VI = VSS (Pull up transistors“on”) –0.5 mA 4 µA –4 –0.2 When clock stopped VRAM RAM hold voltage 2.0 V 5.5 Note 1: P11 is measured when the P-channel output disable bit of the UART control register (bit 4 of address 001B16 ) is “0”. 2: RXD, SCLK, SDATA, and INT0 have hysteresises only when bits 0 and 2 of the port P1P3 control register are set to “0” (CMOS level). 3: It is available only when operating key-on wake-up. 41 MITSUBISHI MICROCOMPUTERS 7532 Group SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER Table 10 Electrical characteristics (2) (VCC = 4.1 to 5.5 V, VSS = 0 V, Ta = –20 to 85 °C, unless otherwise noted) Symbol Parameter Min. Unit Typ. Max. 6 10 mA f(XIN) = 6 MHz (in WIT state) Output transistors “off” 1.6 3.2 mA Increment when A-D conversion is executed f(XIN) = 6 MHz, VCC = 5 V 0.8 Double-speed mode, f(XIN) = 6 MHz Output transistors “off” Power source current ICC Limits Test conditions All oscillation stopped (in STP state) Output transistors “off” VCC = 4.40 to 5.25 V Oscillation stopped in USB mode USB (SUSPEND), (pull-up resistor output not included) (Fig. 47) Ta = 25 °C 0.1 Ta = 85 °C Ta = 0 to 70 °C mA 1.0 µA 10 µA 300 µA A-D Converter Characteristics Table 11 A-D Converter characteristics (1) (VCC = 4.1 to 5.5 V, VSS = 0 V, Ta = –20 to 85 °C, unless otherwise noted) Symbol Parameter — Resolution — Linearity error — Differential nonlinear error Test conditions Limits Min. Typ. Max. 10 Unit Bits VCC = 4.1 to 5.5 V Ta = 25 °C ±3 LSB VCC = 4.1 to 5.5 V Ta = 25 °C ±0.9 LSB mV VOT Zero transition voltage VCC = VREF = 5.12 V 0 5 20 VFST Full scale transition voltage VCC = VREF = 5.12 V 5105 5115 5125 mV tCONV Conversion time 122 tc(XIN) RLADDER Ladder resistor IVREF Reference power source input current II(AD) A-D port input current VCC VCC USBVREFOUT 1.5 kΩ D15 kΩ VSS 50 150 200 VREF = 3.0 V 30 70 120 5.0 ICC IOUT Rating value = ICC – IOUT Fig. 47 Power source current measurement circuit in USB mode at oscillation stop 42 kΩ 55 VREF = 5.0 V µA µA MITSUBISHI MICROCOMPUTERS 7532 Group SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER Timing Requirements Table 12 Timing requirements (VCC = 4.1 to 5.5 V, VSS = 0 V, Ta = –20 to 85 °C, unless otherwise noted) Symbol Limits Parameter Min. Typ. Max. ____________ Unit Reset input “L” pulse width 15 µs tC(XIN) External clock input cycle time 166 ns tWH(XIN) External clock input “H” pulse width 70 ns tWL(XIN) External clock input “L” pulse width 70 ns tC(CNTR) CNTR0 input cycle time 200 ns tWH(CNTR) CNTR0, INT0 input “H” pulse width 80 ns tWL(CNTR) CNTR0, INT0 input “L” pulse width 80 ns tC(SCLK) Serial I/O2 clock input cycle time 1000 ns tWH(SCLK) Serial I/O2 clock input “H” pulse width 400 ns tWL(SCLK) Serial I/O2 clock input “L” pulse width 400 ns Serial I/O2 input set up time 200 ns Serial I/O2 input hold time 200 ns tW(RESET) tsu(SCLK–SDATA) th(SCLK–SDATA) Switching Characteristics Table 13 Switching characteristics (VCC = 4.1 to 5.5 V, VSS = 0 V, Ta = –20 to 85 °C, unless otherwise noted) Symbol Parameter Limits Min. Typ. Max. Unit ns tWH(SCLK) Serial I/O2 clock output “H” pulse width tC(SCLK)/2–30 tWL(SCLK) Serial I/O2 clock output “L” pulse width tC(SCLK)/2–30 td(SCLK–SDATA) Serial I/O2 output delay time tv(SCLK–SDATA) Serial I/O2 output valid time tr(SCLK) Serial I/O2 clock output rising time 30 ns tf(SCLK) Serial I/O2 clock output falling time 30 ns tr(CMOS) CMOS output rising time (Note) 10 30 ns tf(CMOS) CMOS output falling time (Note) 10 30 ns tr(D+), tr(D-) USB output rising time, CL = 350 pF, Ta = 0 to 70 °C 100 200 300 ns tf(D+), tf(D-) USB output falling time, CL = 350 pF, Ta = 0 to 70 °C 100 200 300 ns ns 140 0 ns ns Notes: XOUT pin is excluded. Measured output pin 100 pF CMOS output Fig. 48 Output switching characteristics measurement circuit 43 MITSUBISHI MICROCOMPUTERS 7532 Group SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER tC(CNTR) tWL(CNTR) tWH(CNTR) CNTR0 0.8VCC 0.2VCC tWL(INT) tWH(INT) 0.8VCC INT0 0.2VCC tW(RESET) RESET 0.8VCC 0.2VCC tC(XIN) tWL(XIN) tWH(XIN) 0.8VCC XIN 0.2VCC tC(SCLK) tf SCLK tWL(SCLK) tr tWH(SCLK) 0.8VCC 0.2VCC tsu(SDATA-SCLK) th(SCLK-SDATA) 0.8VCC 0.2VCC SDATA(at receive) td(SCLK-SDATA) tv(SCLK-SDATA) SDATA(at transmit) tf D+, DFig. 49 Timing chart 44 tr 0.1V0H 0.9V0H MITSUBISHI MICROCOMPUTERS 7532 Group SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER MARK SPECIFICATION FORM 36P2R-A (36-PIN SHRINK SOP) MARK SPECIFICATION FORM Mitsubishi IC catalog name Please choose one of the marking types below (A, B, C), and enter the Mitsubishi catalog name and the special mark (if needed). A. Standard Mitsubishi Mark 36 19 Mitsubishi IC catalog name Mitsubishi IC catalog name Mitsubishi lot number (6-digit or 7-digit) 18 1 B. Customer’s Parts Number + Mitsubishi catalog name 36 19 Mitsubishi lot number (6-digit or 7-digit) 1 18 Customer’s Parts Number Note : The fonts and size of characters are standard Mitsubishi type. Mitsubishi IC catalog name Note1 : The mark field should be written right aligned. 2 : The fonts and size of characters are standard Mitsubishi type. 3 : Customer’s Parts Number can be up to 11 characters : Only 0 ~ 9, A ~ Z, +, –, /, (, ), &, , (periods), (commas) are usable. 4 : If the Mitsubishi logo is not required, check the box below. Mitsubishi logo is not required . , C. Special Mark Required 36 19 1 18 Note1 : If the Special Mark is to be Printed, indicate the desired layout of the mark in the left figure. The layout will be duplicated as close as possible. Mitsubishi lot number (6-digit or 7-digit) and Mask ROM number (3-digit) are always marked. 2 : If the customer’s trade mark logo must be used in the Special Mark, check the box below. Please submit a clean original of the logo. For the new special character fonts a clean font original (ideally logo drawing) must be submitted. Special logo required 3 : The standard Mitsubishi font is used for all characters except for a logo. 45 MITSUBISHI MICROCOMPUTERS 7532 Group SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER 32P6B-A (32-PIN LQFP) MARK SPECIFICATION FORM Mitsubishi IC catalog name Please choose one of the marking types below (A, B), and enter the Mitsubishi catalog name and the special mark (if needed). A. Standard Mitsubishi Mark 17 24 16 25 Mitsubishi IC catalog name Mitsubishi IC catalog name Mitsubishi lot number (4-digit or 5-digit) 32 9 1 8 B. Customer’s Parts Number + Mitsubishi catalog name 24 17 16 25 Customer’s Parts Number Note : The fonts and size of characters are standard Mitsubishi type. Mitsubishi IC catalog name Note1 : The mark field should be written right aligned. 2 : The fonts and size of characters are standard Mitsubishi type. 3 : Customer’s Parts Number can be up to 7 characters : Only 0 ~ 9, A ~ Z, +, –, /, (, ), &, , (periods), (commas) are usable. . 32 9 1 46 8 , MITSUBISHI MICROCOMPUTERS 7532 Group SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER PACKAGE OUTLINE 36P2R-A Plastic 36pin 450mil SSOP EIAJ Package Code SSOP36-P-450-0.80 JEDEC Code – Weight(g) 0.53 Lead Material Alloy 42 e 36 b2 E F Recommended Mount Pad Symbol 1 18 A A2 D y b L e A1 L1 HE e1 I2 19 A A1 A2 b c D E e HE L L1 y c Detail F b2 e1 I2 Dimension in Millimeters Min Nom Max 2.4 – – – – 0.05 – 2.0 – 0.5 0.4 0.35 0.2 0.15 0.13 15.2 15.0 14.8 8.6 8.4 8.2 – 0.8 – 12.23 11.93 11.63 0.7 0.5 0.3 – 1.765 – 0.15 – – 0° – 10° – 0.5 – – 11.43 – – – 1.27 47 MITSUBISHI MICROCOMPUTERS 7532 Group SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER 32P6B-A Plastic 32pin 7✕7mm body LQFP EIAJ Package Code LQFP32-P-77-0.80 Weight(g) Lead Material Alloy 42 MD e JEDEC Code – b2 ME HD D 32 25 I2 1 24 E HE Recommended Mount Pad Symbol 17 8 9 16 A L1 e y b A1 c A2 F L Detail F A A1 A2 b c D E e HD HE L L1 y b2 I2 MD ME Dimension in Millimeters Min Nom Max 1.7 – – 0.1 0.2 0 1.4 – – 0.3 0.35 0.45 0.105 0.125 0.175 6.9 7.0 7.1 6.9 7.0 7.1 0.8 – – 8.8 9.0 9.2 8.8 9.0 9.2 0.3 0.5 0.7 1.0 – – 0.1 – – 0° 10° – 0.5 – – 1.0 – – – – 7.4 – – 7.4 Keep safety first in your circuit designs! • Mitsubishi Electric Corporation puts the maximum effort into making semiconductor products better and more reliable, but there is always the possibility that trouble may occur with them. Trouble with semiconductors may lead to personal injury, fire or property damage. Remember to give due consideration to safety when making your circuit designs, with appropriate measures such as (i) placement of substitutive, auxiliary circuits, (ii) use of non-flammable material or (iii) prevention against any malfunction or mishap. • These materials are intended as a reference to assist our customers in the selection of the Mitsubishi semiconductor product best suited to the customer’s application; they do not convey any license under any intellectual property rights, or any other rights, belonging to Mitsubishi Electric Corporation or a third party. Mitsubishi Electric Corporation assumes no responsibility for any damage, or infringement of any third-party’s rights, originating in the use of any product data, diagrams, charts or circuit application examples contained in these materials. All information contained in these materials, including product data, diagrams and charts, represent information on products at the time of publication of these materials, and are subject to change by Mitsubishi Electric Corporation without notice due to product improvements or other reasons. It is therefore recommended that customers contact Mitsubishi Electric Corporation or an authorized Mitsubishi Semiconductor product distributor for the latest product information before purchasing a product listed herein. Mitsubishi Electric Corporation semiconductors are not designed or manufactured for use in a device or system that is used under circumstances in which human life is potentially at stake. Please contact Mitsubishi Electric Corporation or an authorized Mitsubishi Semiconductor product distributor when considering the use of a product contained herein for any specific purposes, such as apparatus or systems for transportation, vehicular, medical, aerospace, nuclear, or undersea repeater use. The prior written approval of Mitsubishi Electric Corporation is necessary to reprint or reproduce in whole or in part these materials. If these products or technologies are subject to the Japanese export control restrictions, they must be exported under a license from the Japanese government and cannot be imported into a country other than the approved destination. Any diversion or reexport contrary to the export control laws and regulations of Japan and/or the country of destination is prohibited. Please contact Mitsubishi Electric Corporation or an authorized Mitsubishi Semiconductor product distributor for further details on these materials or the products contained therein. Notes regarding these materials • • • • • • © 1999 MITSUBISHI ELECTRIC CORP. New publication, effective Jul. 1999. Specifications subject to change without notice. 48 REVISION DESCRIPTION LIST Rev. No. 7532 Group DATA SHEET Revision Description Rev. date 1.0 First Edition 970822 1.1 All pages; “PRELIMINARY Notice: This is not a final specification. Some parametric limits 981218 are subject to change.” eliminated. Page 4; Fig. 3; “Under development” eliminated. Page 5; Central Processing Unit (CPU); The name of manual, 740 Family Software Manual, is revised. Fig. 4; The bit name is revised. Bits 6 and 7 explanations of CPU mode register are revised. Fig. 5; Explanation is added. Page 6; Special page; Some words are corrected. Page 7 Fig. 7 ; Some register names are revised. Page 8 [Direction register] PiD; The sentence is revised. →Pins set to output are floating. Fig. 9; The Figure title is revised. Page 12; Interrupts; Explanation is revised. The period is added. Interrupt operation; The order of operation is revised. Table 4: Remarks is revised. Some words are corrected. Page 17; Serial I/O; Some words and the pin name position are revised. Page 18; The register name is revised. → [UART status register] UARTSTS Fig. 20; Some words are corrected. Page 21 to Page 24; Some words are corrected. Page 26; Serial I/O2; Some words are corrected. Fig. 29; Explanation is revised. Page 28; [A-D conversion register]AD; The sentence is revised.→Do not read out during an A-D conversion. Page 29; Fig. 35; The sentence is revised.→read-only for high-order 6-bit Page 30; Fig. 37; The period is added. Page 32; • Wait mode; The sentence is revised. →When the STP status is released, prescaler 12 and timer 1 will start counting clock which is XIN divided by 16,..... Page 34; One Time PROM Version; The sentences are revised. →To improve the noise reduction, connect a track between CNMSS pin and VSS pin... →The mask ROM version track of CNVSS pin has no operational interference... Page 36; Absolute Maximum Ratings; Parameter of input voltage is revised. Note is revised. Page 37; Recommended operating conditions; Limits of “H” input voltage is revised. (1/2) REVISION DESCRIPTION LIST Rev. No. 1.1 7532 Group DATA SHEET Revision Description Page 38; Electrical characteristics; Rev. date 981218 Test conditions of VOH and VOL are revised. Some of VOL are eliminated partly. Hysteresis is added. Page 39; Electrical characteristics; Test condition is added. A-D Converter Characteristics; Some of VOT and VFST are eliminated partly. Page 40; Switching characteristics; Title and Table title are revised. Limits of tC(XIN), tWH(XIN), tWL(XIN). Figure is added. 2.0 Most of the contents (Functional Description, Electrical characteristics, and so on) are updated. 990723 2.1 Page 2; Fig. 2 Pin configuration of M37532M4-XXXGP; Pin functions revised. 991015 Pin 26: P10/RxD/D- (correct) Pin 27: P11/TxD/D+ (correct) 2.2 Updated as follows: 991110 •Page 1; Power dissipation to 30 mW •Page 9; Fig. 9; Start address of Interrupt vector area to FFEC16 •Page 42, Table 11; Parameter to Linearity error from former Absolute accuracy 2.3 Page 30; Fig.33 Note revised 000614 Page 33; Description revised; RESET “L” pulse width 2 µs → 15 µs Page 42, Table 11 Linearity error; “excluding quantization error” deleted Page 43; Table 12 tw(RESET) revised; 2 → 15 (2/2)