Microcomputer Components 8-Bit CMOS Microcontroller C511/C511A C513/C513A C513A-H Data Sheet 06.96 Data Sheet C511/C511A/C513/C513A/C513A-H Revision History : Current Version : 06.96 Previous Releases : 02.96, 05.95 Page Subjects (changes since last revision) Several 41 Corrections of text Figure 22: external clock configuration corrected C511 C511A C513 C513A C513A-H 8-Bit CMOS Microcontroller Family Preliminary ● ● ● ● ● ● ● ● ● ● ● ● ● Fully software compatible to standard 8051/8052 microcontrollers Up to 12 MHz operating frequency Up to 12 K×8 ROM / EEPROM Up to 256×8 RAM Up to 256 x 8 XRAM Four 8-bit ports Up to three 16-bit Timers / Counters (Timer 2 with Up/Down and 16-bit Autoreload Feature) Synchronous Serial Channel (SSC) Optional USART Up to seven interrupt sources, two priority levels Power Saving Modes P-LCC-44 package (C513A also in P-MQFP-44 package) TA : 0 ˚C to 70 ˚C Temperature Ranges : SAB-C511 / 511A / 513 / 513A / C513A-H TA : -40 ˚C to 85 ˚C SAF-C513A Semiconductor Group 3 06.96 C511 / C513 The C511, C511A, C513, C513A, and C513A-H are members of a family of low cost microcontrollers, which are software compatible with the components of the SAB 8051, SAB 80C51 and C500 families. The first four versions contains a non-volatile read-only (ROM) program memory. The C513A-H is a version with a 12 Kbyte EEPROM instead of ROM. This device can be used for prototype designs which have a demand for reprogrammable on-chip code memory. The members of the microcontroller family differ in functionality according table 1. They offer different ROM sizes, different RAM/XRAM sizes and a different timer/USART configuration. Common to all devices is an advanced SSC serial port, a second synchronous serial interface, which is compatible to the SPI serial bus industry standard. The functionality of the C513A-H is a superset of all ROM versions of the C511/C513 family. Table 1 Functionality of the C511/C513 MCUs Device ROM Size EEPROM Size RAM Size XRAM Size Timers 1) USART SSC C511 2.5 KB – 128 B – T0, T1 – ✓ C511A 4 KB – 256 B – T0, T1 – ✓ C513 8 KB – 256 B – T0, T1, T2 ✓ ✓ C513A 12, 16 KB – 256 B 256 B T0, T1, T2 ✓ ✓ C513A-H – 12 KB 256 B 256 B T0, T1, T2 ✓ ✓ 1) T0/T1 refers to the standard 8051 timer 0/1 units, T2 refers to the 8052 timer 2 unit. Figure 1 C511/513 Logic Symbol Semiconductor Group 4 C511 / C513 Table 2 Ordering Information Type Ordering Code C511-RN Q67120-DXXXX P-LCC-44 with mask-programmable ROM (2.5K), 12 MHz C511A-RN Q67120-DXXXX P-LCC-44 with mask-programmable ROM (4K), 12 MHz C513-1RN Q67120-DXXXX P-LCC-44 with mask-programmable ROM (8K), 12 MHz C513A-RN Q67120-DXXXX P-LCC-44 with mask-programmable ROM (12K), 12 MHz Q67120-DXXXX P-LCC-44 with mask-programmable ROM (12K), 12 MHz, ext. temp. – 40 ˚C to 85 ˚C Q67120-DXXXX P-LCC-44 with mask-programmable ROM (16K), 12 MHz Q67120-DXXXX P-LCC-44 with mask-programmable ROM (16K), 12 MHz, ext. temp. – 40 ˚C to 85 ˚C C513A-2RN C513A-2RM Package Description (8-Bit CMOS microcontroller) Q67120-DXXXX P-MQFP-44 with mask-programmable ROM (16K), 12 MHz Q67120-DXXXX P-MQFP-44 with mask-programmable ROM (16K), 12 MHz, ext. temp. – 40 ˚C to 85 ˚C C513A-LN C513A-LM C513A-HN Q67120-C1017 P-LCC-44 for external memory (12 MHz) Q67120-C1035 P-LCC-44 for external memory (12 MHz), ext. temp. – 40 ˚C to 85 ˚C Q67120-C1026 P-MQFP-44 for external memory (12 MHz) Q67120-C1036 P-MQFP-44 for external memory (12 MHz), ext. temp. – 40 ˚C to 85 ˚C Q67120-C0989 P-LCC-44 with reprogrammable EEPROM (12K), 12 MHz, ext. temp. – 40 ˚C to 85 ˚C Note : The ordering number of the ROM types (DXXXX extension) is defined after program release (verification) of the customer. Semiconductor Group 5 C511 / C513 Figure 2 P-LCC-44 Package Pin Configuration (Top View) If the C513A-H is used in programming mode, the pin configuration is different to figure 2 and 3 (see figure 5). Semiconductor Group 6 C511 / C513 Figure 3 P-MQFP-44 Package Pin Configuration of the C513A (Top View) Semiconductor Group 7 C511 / C513 Table 3 Pin Definitions and Functions Symbol Pin Number I/O*) Function P-LCC- P-MQFP44 44 P1.7-P1.0 9-2 3-1, 44-40 I/O Port 1 is a bidirectional I/O port with internal pull-up resistors. Port 1 pins that have 1s written to them are pulled high by the internal pullup resistors, and in that state can be used as inputs. As inputs, port 1 pins being externally pulled low will source current (IIL, in the DC characteristics) because of the internal pullup resistors. Port 1 also contains the timer 2 and SSC pins as secondary function. In general the output latch corresponding to a secondary function must be programmed to a one (1) for that function to operate. For the outputs of the SSC (SCLK, STO) special circuitry is implemented, providing true push-pull capability. The STO output in addition will have true tristate capability. When used for SSC inputs, the pull-up resistors will be switched off and the inputs will float (high ohmic inputs). The alternate functions are assigned to port 1, as follows: 2 3 40 41 P1.0 P1.1 T2 T2EX 4 42 P1.2 SCLK 5 6 7 43 44 1 P1.3 P1.4 P1.5 SRI STO SLS Input to counter 2 1) Capture -Reload trigger of timer 2 Up-Down count SSC Master Clock Output SSC Slave Clock Input SSC Receive Input SSC Transmit Output Slave Select Input 1) not available in the C511/511A *) I = Input O = Output Semiconductor Group 8 1) C511 / C513 Table 3 Pin Definitions and Functions (cont’d) Symbol Pin Number I/O*) Function P-LCC- P-MQFP44 44 P3.0-P3.7 11, 13-19 5, 7-13 I/O Port 3 is a bidirectional I/O port with internal pull-up resistors. Port 3 pins that have 1s written to them are pulled high by the internal pullup resistors, and in that state can be used as inputs. As inputs, port 3 pins being externally pulled low will source current (IIL, in the DC characteristics) because of the internal pullup resistors. Port 3 also contains the interrupt, timer, serial port and external memory strobe pins that are used by various options. The output latch corresponding to a secondary function must be programmed to a one (1) for that function to operate. The secondary functions are assigned to the pins of port 3 as follows: 11 5 P3.0 RXD 13 7 P3.1 TXD 14 15 16 17 18 8 9 10 11 12 P3.2 P3.3 P3.4 P3.5 P3.6 INT0 INT1 T0 T1 WR 19 13 P3.7 RD 1) XTAL2 20 14 – not available in the C511/511A XTAL2 Output of the inverting oscillator amplifier. *) I = Input O = Output Semiconductor Group Receiver data input (asynchronous) or data input/output (synchronous) of serial interface (USART) 1) Transmitter data output (USART) 1) (asynchronous) or clock output (synchronous) of serial interface Interrupt 0 input / timer 0 gate control Interrupt 1 input / timer 1 gate control Counter 0 input Counter 1 input Write control signal : latches the data byte from port 0 into the external data memory Read control signal : enables the external data memory to port 0 9 C511 / C513 Table 3 Pin Definitions and Functions (cont’d) Symbol Pin Number I/O*) Function P-LCC- P-MQFP44 44 XTAL1 21 15 – XTAL1 Input to the inverting oscillator amplifier and input to the internal clock generator circuits. To drive the device from an external clock source, XTAL1 should be driven, while XTAL2 is left unconnected. There are no requirements on the duty cycle of the external clock signal, since the input to the internal clocking circuitry is divided down by a divide-by-two flip-flop. Minimum and maximum high and low times as well as rise/fall times specified in the AC characteristics must be observed. P2.0-P2.7 24-31 18-25 I/O Port 2 is a bidirectional I/O port with internal pullup resistors. Port 2 pins that have 1s written to them are pulled high by the internal pullup resistors, and in that state can be used as inputs. As inputs, port 2 pins being externally pulled low will source current (IIL, in the DC characteristics) because of the internal pullup resistors. Port 2 emits the high-order address byte during fetches from external program memory and during accesses to external data memory that use 16-bit addresses (MOVX @DPTR). In this application it uses strong internal pullup resistors when issuing 1s. During accesses to external data memory that use 8-bit addresses (MOVX @Ri), port 2 issues the contents of the P2 special function register. PSEN 32 26 O The Program Store Enable output is a control signal that enables the external program memory to the bus during external fetch operations. It is activated every six oscillator periodes except during external data memory accesses. Remains high during internal program execution. RESET 10 4 I RESET A high level on this pin for two machine cycles while the oscillator is running resets the device. An internal resistor to VSS permits power-on reset using only an external capacitor to VCC. *) I = Input O = Output Semiconductor Group 10 C511 / C513 Table 3 Pin Definitions and Functions (cont’d) Symbol Pin Number I/O*) Function P-LCC- P-MQFP44 44 ALE 33 27 O The Address Latch Enable output is used for latching the low-byte of the address into external memory during normal operation. It is activated every six oscillator periodes except during an external data memory access. If no external memory is used, the ALE signal generation can be inhibited, reducing system RFI, by clearing register bit EALE in the SYSCON register. EA 35 29 I External Access Enable When held at high level, instructions are fetched from the internal ROM when the PC is less than the size of the internal ROM : C511 0A00H C511A 1000H C513 2000H C513A/A-H 3000H C513A-2R 4000H When held at low level, the microcontroller fetches all instructions from external program memory. P0.0-P0.7 43-36 37-30 I/O Port 0 is an 8-bit open-drain bidirectional I/O port. Port 0 pins that have 1s written to them float, and in that state can be used as high-impendance inputs. Port 0 is also the multiplexed low-order address and data bus during accesses to external program or data memory. In this application it uses strong internal pullup transistors when issuing 1s. External pullup resistors are required during program verification. VSS 22 16 – Circuit ground potential VCC 44 38 – Power Supply terminal for all operating modes N.C. 1, 12, 23, 34 6, 17, 28, 39 – No connection, do not connect externally *) I = Input O = Output Semiconductor Group 11 C511 / C513 Figure 4 C513A-H Logic Symbol in Programming Mode Figure 5 C513A-H Pin Configuration in Programming Mode (P-LCC-44) Semiconductor Group 12 C511 / C513 Table 4 Pin Definitions and Functions in Programming Mode (C513A-H only) Symbol Pin Number I/O*) Function P-LCC-44 PRES 15 I Programming Interface Reset A high level on this input resets the programming interface and its registers to their initial state. AD0 - AD7 43 - 36 I/O Bidirectional Address/Data Bus AD0-7 is used to transfer data to and from the registers of the programming interface and to read the data of the memory field during EEPROM verification. PALE 16 I Programming Address Latch Enable This input is used to latch address information at AD0-7. The trailing edge of PALE is used to latch the register addresses. Each read or write access in programming mode must be initiated by a PALE high pulse. PRD 18 I Programming Read Control A low level at this pin (and PCS=low) enables the AD0-7 buffers for reading of the data or control registers of the programming interface. PWR 19 I Programming Write Control A low level at this pin (and PCS=low) causes the data at AD07 to be written into the data or control registers of the programming interface. PCS 17 I Programming Chip Select A low level at this pin enables the access to the registers of the programming interface. If PCS is active, either PRD or PWR control whether data is read or written into the registers. PCS should be always deactivated between subsequent accesses to the programming interface. XTAL2 20 – XTAL2 Output of the inverting oscillator amplifier. XTAL1 21 – XTAL1 Input to the inverting oscillator amplifier and input to the internal clock generator circuits. To drive the device from an external clock source, XTAL1 should be driven, while XTAL2 is left unconnected. During the device programming a clock must be always supplied. *) I = Input O = Output Semiconductor Group 13 C511 / C513 Table 4 Pin Definitions and Functions in Programming Mode (C513A-H only) (cont’d) Symbol Pin Number I/O*) Function P-LCC-44 PMS0 PMS1 PMS2 PMS3 35 33 32 10 I Programming Mode Select PMS0-3 are used to put the C513A-H into the program-ming mode. In normal mode the programming mode select pins have the meaning as shown in the table below. PMS0-3 must be set to the logic level as described in the table below. Normal Mode Pin Names Progr. Mode Pin Names Required Logic Level EA PMS0 0 ALE PMS1 1 PSEN PMS2 0 RESET PMS3 1 VSS 22 – Circuit ground potential VCC 44 – Power supply terminal for all operating modes N.C. 1-9, 11-14, 23-31, 34 – No connection These pins must not be connected. *) I = Input O = Output Semiconductor Group 14 C511 / C513 Functional Description The C511/C513 microcontrollers are fully compatible to the standard 8051/80C52 and C500 microcontroller family. While maintaining all architectural and operational characteristics of the 80C52/C500 the C511/C513 incorporates enhancements such as additional internal XRAM and a second (synchronous) serial interface unit. Figure 6 shows a block diagram of the C511/C513 microcontroller family. Figure 6 Block Diagram of the C511/C513 Units Semiconductor Group 15 C511 / C513 CPU The C511/C513 are efficient both as a controller and as an arithmetic processor. It has extensive facilities for binary and BCD arithmetic and for bit-handling capabilities. Efficient use of program memory results from an instruction set consisting of 44 % one-byte, 41 % two-byte, and 15 % threebyte instructions. With a 12 MHz crystal, 58 % of the instructions execute in 1 µs. Special Function Register PSW (Address D0H) Bit No. D0H Reset Value : 00H MSB 7 6 5 4 3 2 1 LSB 0 CY AC F0 RS1 RS0 OV F1 P PSW Bit Function CY Carry Flag AC Auxiliary Carry Flag (for BCD operations) F0 General Purpose Flag RS1 RS0 0 0 0 1 1 0 1 1 Register Bank select control bits Bank 0 selected, data address 00H-07H Bank 1 selected, data address 08H-0FH Bank 2 selected, data address 10H-17H Bank 3 selected, data address 18H-1FH OV Overflow Flag F1 General Purpose Flag P Parity Flag Set/cleared by hardware each instruction cycle to indicate an odd/even number of "one" bits in the accumulator, i.e. even parity. Semiconductor Group 16 C511 / C513 Special Function Registers All registers except the program counter and the four general purpose register banks reside in the special function register area. The 34 special function registers (SFR) include pointers and registers that provide an interface between the CPU and the other on-chip peripherals. There are also 128 directly addressable bits within the SFR area. All SFRs are listed in table 5 and table 6. In table 5 they are organized in groups which refer to the functional blocks of the C511/C513. Table 6 illustrates the contents of the SFRs, e.g. the bits of the SFRs, in numeric order of their addresses. Semiconductor Group 17 C511 / C513 Table 5 SFRs - Functional Blocks Block Symbol Name Address Contents after Reset CPU ACC B DPH DPL PSW SP SYSCON Accumulator B-Register Data Pointer, High Byte Data Pointer, Low Byte Program Status Word Stack Pointer System Control Reg. C511/C511A/C513 C513A/C513A-H E0H 1) F0H 1) 83H 82H D0H 1) 81H B1H B1H 00H 00H 00H 00H 00H 07H 101X0XXXB 3) 101X0XX0B 3) Interrupt System IE IP Interrupt Enable Register Interrupt Priority Register A8H1) B8H 1) 00H X0000000B 3) Ports P0 P1 P2 P3 Port 0 Port 1 Port 2 Port 3 80H 1) 90H 1) A0H 1) B0H 1) FFH FFH FFH FFH SSC SSCCON STB SRB SCF SCIEN SSCMOD SSC Control Register SSC Transmit Buffer SSC Receive Register SSC Flag Register SSC Interrupt Enable Register SSC Mode Test Register E8H 1) E9H EAH F8H 1) F9H EBH 07H XXH 3) XXH 3) XXXXXX00B 3) XXXXXX00B 3) 00H USART PCON SBUF SCON Power Control Register Serial Channel Buffer Register Serial Channel 1 Control Register 87H 99H 98H 1) 0XXX0000B 3) XXH 3) 00H Timer 0 / Timer 1 TCON TMOD TL0 TL1 TH0 TH1 Timer Control Register Timer Mode Register Timer 0, Low Byte Timer 1, Low Byte Timer 0, High Byte Timer 1, High Byte 88H 1) 89H 8AH 8BH 8CH 8DH 00H 00H 00H 00H 00H 00H Timer 2 T2CON T2MOD RC2L RC2H TL2 TH2 Timer 2 Control Register Timer 2 Mode Register Timer 2 Reload/Capture Register, Low Byte Timer 2 Reload/Capture Register, High Byte Timer 2 Low Byte Timer 2 High Byte C8H 1) C9H CAH CBH CCH CDH 00H XXXXXXX0B 3) 00H 00H 00H 00H Power Control Register 87H 0XXX0000B 3) Power PCON Save Mode 1) 2) 3) 2) 2) Bit-addressable special function registers This special function register is listed repeatedly since some bits of it also belong to other functional blocks. X means that the value is indeterminate and the location is reserved Semiconductor Group 18 C511 / C513 Table 6 Contents of the SFRs, SFRs in Numeric Order of their Addresses Addr Register Content after Reset 1) Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 80H 81H P0 FFH 07H .7 .6 .5 .4 .3 .2 .1 .0 .7 .6 .5 .4 .3 .2 .1 .0 82H 83H DPL 00H 00H .7 .6 .5 .4 .3 .2 .1 .0 .7 .6 .5 .4 .3 .2 .1 .0 87H PCON 0XXX0000B SMOD – – – GF1 GF0 PDE IDLE 88H 89H TCON 00H 00H TF1 TR1 TF0 TR0 IE1 IT1 IE0 IT0 GATE C/T M1 M0 GATE C/T M1 M0 8AH 8BH TL0 00H 00H .7 .6 .5 .4 .3 .2 .1 .0 .7 .6 .5 .4 .3 .2 .1 .0 8CH 8DH TH0 00H 00H .7 .6 .5 .4 .3 .2 .1 .0 .7 .6 .5 .4 .3 .2 .1 .0 90H 98H P1 FFH 00H – – SLS STO SRI SCLK T2EX T2 SM0 SM1 SM2 REN TB8 RB8 TI RI 99H A0H SBUF XXH FFH .7 .6 .5 .4 .3 .2 .1 .0 .7 .6 .5 .4 .3 .2 .1 .0 EAL ESSC ET2 ES0 ET1 EX1 ET0 EX0 RD WR T1 T0 INT1 INT0 TxD0 RxD0 1 0 EALE – 0 – – XMAP2) A8H B0H SP DPH TMOD TL1 TH1 SCON P2 IE P3 SYSCON 00H FFH 2) B1H B8H IP X0000000B – PSSC PT2 PS PT1 PX1 PT0 PX0 C8H T2CON 00H TF2 EXF2 RCLK TCLK EXEN2 TR2 C/T2 CP/ RL2 C9H T2MOD – – – – – – – DCEN CAH CBH RC2L XXXXXXX0B 00H .7 .6 .5 .4 .3 .2 .1 .0 .7 .6 .5 .4 .3 .2 .1 .0 CCH CDH TL2 00H 00H .7 .6 .5 .4 .3 .2 .1 .0 .7 .6 .5 .4 .3 .2 .1 .0 D0H E0H PSW CY AC F0 RS1 RS0 OV F1 P .7 .6 .5 .4 .3 .2 .1 .0 E8H E9H SSCCON 00H 07H SCEN TEN MSTR CPOL CPHA BRS2 BRS1 BRS0 .7 .6 .5 .4 .3 .2 .1 .0 EAH EBH SRB XXH XXH .7 .6 .5 .4 .3 .2 .1 .0 0 0 0 0 0 0 0 0 F0H B .7 .6 .5 .4 .3 .2 .1 .0 RC2H TH2 ACC STB SSCMOD 00H 00H 00H 00H Semiconductor Group 3) 19 C511 / C513 Table 6 Contents of the SFRs, SFRs in Numeric Order of their Addresses (cont’d) Addr Register Content after Reset 1) Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 F8H XXXXXX00B – – – – – – WCOL TC XXXX– – – – – – WCEN TCEN XX00B X means that the value is indeterminate and the location is reserved. The availability of the XMAP bit and the reset value of SYSCON depends on the specific microcontroller : C511/C511A/C513 : 101X0XXXB - bit XMAP is not available C513A/C513A-H : 101X0XX0B - bit XMAP is available This register ist only used for test purposes and must not be written. Otherwise unpredictable results may occur. Shaded registers are bit-addressable special function registers. F9H 1) 2) 3) SCF SCIEN Semiconductor Group 20 C511 / C513 Timer/ Counter 0 and 1 Timer/Counter 0 and 1 can be used in four operating modes as listed in table 7: Table 7 Timer/Counter 0 and 1 operating modes Mode Description TMOD Input Clock Gate C/T M1 M0 internal external (max) 0 8-bit timer/counter with a divide-by-32 prescaler X X 0 0 fOSC/12 × 32 fOSC/24 × 32 1 16-bit timer/counter X X 0 1 fOSC/12 fOSC/24 2 8-bit timer/counter with 8-bit auto-reload X X 1 0 fOSC/12 fOSC/24 3 Timer/counter 0 used as one 8-bit timer/counter and one 8-bit timer Timer 1 stops X X 1 1 fOSC/12 fOSC/24 In “timer” function (C/T = ‘0’) the register is incremented every machine cycle. Therefore the count rate is fOSC/12. In “counter” function the register is incremented in response to a 1-to-0 transition at its corresponding external input pin (P3.4/T0, P3.5/T1). Since it takes two machine cycles to detect a falling edge the max. count rate is fOSC/24. External inputs INT0 and INT1 (P3.2, P3.3) can be programmed to function as a gate to facilitate pulse width measurements. Figure 7 illustrates the input clock logic. Figure 7 Timer/Counter 0 and 1 Input Clock Logic Semiconductor Group 21 C511 / C513 Timer / Counter 2 (not available in the C511/C511A) Timer 2 is a 16-bit Timer/Counter with up/down count feature. It can operate either as timer or as an event counter which is selected by bit C/T2 (T2CON.1). It has three operating modes as shown in table 8. Table 8 Timer/Counter 2 Operating Modes T2CON Mode T2MOD T2CON R×CLK or T×CLK CP/ RL2 TR2 0 0 0 0 16-bit Autoreload Input Clock P1.1/ Remarks T2EX DCEN EXEN 1 0 0 X 1 0 1 ↓ 0 0 0 0 1 1 1 1 X X 0 1 0 1 1 X 0 X 0 1 1 X 1 ↓ Baud Rate Generator 1 X 1 X 0 X 1 X 1 X 1 ↓ off X X 0 X X X 16-bit Capture Note: ↓ = falling edge Semiconductor Group 22 internal external (P1.0/T2) reload upon overflow reload trigger (falling edge) Down counting Up counting fOSC/12 16-bit Timer/ Counter (only up-counting) capture TH2, TL2 → RC2H, RC2L fOSC/12 no overflow interrupt request (TF2) extra external interrupt (“Timer 2”) fOSC/2 max fOSC/24 Timer 2 stops – – max fOSC/24 max fOSC/24 C511 / C513 Serial Interface (USART, not available in the C511/C511A) The serial port is full duplex and can operate in four modes (one synchronous mode, three asynchronous modes) as illustrated in table 9. Figure 8 illustrates the block diagram of Baudrate generation for the serial interface. Table 9 USART Operating Modes Mode SCON Baudrate Description SM0 SM1 0 0 0 fOSC/12 1 0 1 Timer 1/2 overflow rate 2 1 0 fOSC/32 or fOSC/64 9-bit UART 11 bits are transmitted (T×D) or received (R×D) 3 1 1 Timer 1/2 overflow rate 9-bit UART Like mode 2 except the variable baud rate Serial data enters and exits through R×D. T×D outputs the shift clock. 8-bit are transmitted/received (LSB first) 8-bit UART 10 bits are transmitted (through T×D) or received (R×D) Figure 8 Block Diagram of Baud Rate Generation for the Serial Interface Semiconductor Group 23 C511 / C513 The possible baudrates can be calculated using the formulas given in table 10. Table 10 Baudrates Selection Baud rate derived from Interface Mode Baudrate Oscillator 0 2 fOSC/12 (2SMOD × fOSC)/64 Timer 1 (16-bit timer) (8-bit timer with 8-bit autoreload) 1,3 1,3 (2SMOD × timer 1 overflow rate)/32 (2SMOD × fOSC)/(32 × 12 × (256-TH1)) Timer 2 1,3 fOSC/(32 × (65536-(RC2H, RC2L)) Semiconductor Group 24 C511 / C513 Synchronous Serial Channel (SSC) The C511/C513 microcontrollers provide a Synchronous Serial Channel unit, the SSC. This interface is compatible to the popular SPI serial bus interface. It can be used for simple I/O expansion via shift registers, for connection of a variety of peripheral components, such as A/D converters, EEPROMs etc., or for allowing several microcontrollers to be interconnected in a master/slave structure. It supports full-duplex or half-duplex operation and can run in a master or a slave mode. Figure 9 shows the block diagram of the SSC. Figure 9 SSC Blockdiagram Semiconductor Group 25 C511 / C513 Additional On-Chip XRAM (not available in the C511/C511A/C513) The C513A/C513A-H contain another 256 byte of on-chip RAM additional to the 256 byte internal RAM. This RAM is called XRAM (‘eXtended RAM’). The additional on-chip XRAM is logically located in the external data memory range from address FF00H to FFFFH. The contents of the XRAM are not affected by a reset. After power up the content is undefined, while it remains unchanged during and after reset as long as the power supply is not turned off. The XRAM is controlled by SFR SYSCON as shown in table 11. Table 11 Control of the XRAM SFR SYSCON Bit XMAP Description 0 Reset value. Access to XRAM is disabled. 1 XRAM enabled. The signals RD and WR are not activated during MOVX accesses in the XRAM address range. The XRAM is accessed as external data memory. Therefore, MOVX instruction types must be used for accessing the XRAM. A general overview gives table 12. Table 12 Accessing the XRAM Instruction using Instruction DPTR (16-bit addr.) MOVX A @DPTR MOVX @DPTR,A R0/R1 (8-bit addr.) MOVX A, @Ri MOVX @Ri,A Semiconductor Group Remarks Normally the use of these instructions would use a physically external memory. However, in the C513A/ C513A-H the XRAM is accessed if it is enabled by bit XMAP and the 16-bit address (DPTR) is within the XRAM address range FF00H - FFFFH. If XRAM is enabled in the C513A/C513A-H, MOVX instructions using Ri will always access the internal XRAM. External data memory cycles will not be generated in this case. If the XRAM is disabled, MOVX instructions using Ri will generate normal external data memory cycles. 26 C511 / C513 Interrupt System The C511/C513 provide 7 interrupt sources with two priority levels. Figure 10 gives a general overview of the interrupt sources and illustrates the request and control flags. Figure 10 Interrupt Request Sources Semiconductor Group 27 C511 / C513 Table 13 Interrupt Sources and their Corresponding Interrupt Vectors Source (Request Flags) Vector Vector Address IE0 TF0 IE1 TF1 RI + TI External interrupt 0 Timer 0 interrupt External interrupt 1 Timer 1 interrupt USART serial port interrupt, (C513/C513A/C513A-H only) Timer 2 interrupt Synchronous serial channel interrupt (SSC) 0003H 000BH 0013H 001BH 0023H TF2 + EXF2 SSCI 002BH 0043H A low-priority interrupt can itself be interrupted by a high-priority interrupt, but not by another lowpriority interrupt. A high-priority interrupt cannot be interrupted by any other interrupt source. If two requests of different priority level are received simultaneously, the request of higher priority is serviced. If requests of the same priority are received simultaneously, an internal polling sequence determines which request is serviced. Thus within each priority level there is a second priority structure determined by the polling sequence as shown in table 14. Table 14 Priority-within-Level Structure Interrupt Source External Interrupt 0, Synchronous Serial Channel Timer 0 Interrupt, External Interrupt 1, Timer 1 Interrupt, Universal Serial Channel, Timer 2 Interrupt, Semiconductor Group Priority IE0 SSC TF0 IE1 TF1 RI or TI TF2 or EXF2 High ↓ Low 28 C511 / C513 Power Saving Modes Two power down modes are available, the idle mode and the power down mode. In the idle mode only the CPU will be deactivated while in the power down mode the on-chip oscillator is stopped. The bits PDE and IDLE select the power down mode or the idle mode, respectively. If the power down mode and the idle mode are set at the same time, power down takes precedence. Table 15 gives a general overview of the power saving modes. Table 15 Entering and leaving the power saving modes Mode Entering Example Leaving by Remarks Idle mode ORL PCON, #01H – enabled interrupt – Hardware Reset CPU is gated off CPU status registers maintain their data. Peripherals are active Power Down Mode ORL PCON, #02H Hardware Reset Oscillators are stopped. Contents of on-chip RAM and SFR’s are maintained (leaving power down mode means redefinition of SFR’s contents) In the power down mode of operation, VCC can be reduced to minimize power consumption. It must be ensured, however, that VCC is not reduced before the power down mode is invoked, and that VCC is restored to its normal operating level, before the power down mode is terminated. The reset signal that terminates the power down mode also restarts the oscillator. The reset should not be activated before VCC is restored to its normal operating level and must be held active long enough to allow the oscillator to restart and stabilize (similar to power-on reset). Semiconductor Group 29 C511 / C513 Absolute Maximum Ratings Ambient temperature under bias (TA) .............................................................. 0 ˚C to + 70 ˚C Storage temperature (TST) ...............................................................................– 65 ˚C to + 150 ˚C Voltage on VCC pins with respect to ground (VSS) ............................................– 0.5 V to 6.5 V Voltage on any pin with respect to ground (VSS) ..............................................– 0.5 V to VCC + 0.5 V Input current on any pin during overload condition..........................................– 10 mA to + 10 mA Absolute sum of all input currents during overload condition ..........................| 100 mA | Power dissipation.............................................................................................TBD Note: Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage of the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for longer periods may affect device reliability. During overload conditions (VIN > VCC or VIN < VSS) the Voltage on VCC pins with respect to ground (VSS) must not exceed the values defined by the absolute maximum ratings. Semiconductor Group 30 C511 / C513 DC Characteristics VCC = 5 V + 10 %, – 15 %; VSS = 0 V; Parameter TA = 0 to + 70 ˚C Symbol Limit Values min. max. Unit Test Condition Input low voltage (except EA, RESET) VIL – 0.5 0.2 VCC – 0.1 V – Input low voltage (EA) VIL1 – 0.5 0.2 VCC – 0.3 V – Input low voltage (RESET) VIL2 – 0.5 0.2 VCC + 0.1 V – Input high voltage (except EA, RESET, XTAL1) VIH 0.2 VCC + 0.9 VCC + 0.5 V – Input high voltage to XTAL1 VIH1 0.7 VCC VCC + 0.5 V – Input high voltage to EA, RESET VIH2 0.6 VCC VCC + 0.5 V – Output low voltage Ports 1, 2, 3 (except P1.2, P1.4) Port 0, ALE, PSEN P1.2 / P1.4 pull-down transistor resistance VOL VOL1 RDSon – – – 0.45 0.45 120 V Ω IOL = 1.6 mA 1) IOL = 3.2 mA 1) VOL = 0.45 V VOH – – – – 120 V V V V Ω IOH = – 80 µA IOH = – 10 µA IOH = – 800 µA IOH = – 80 µA VOH = 0.9 VCC Output high voltage Ports 1, 2, 3 V Port 0 in ext. bus mode, ALE, PSEN P1.2 / P1.4 pull-up transistor resistance VOH1 RDSon 2.4 0.9 VCC 2.4 0.9 VCC – Logic 0 input current (Ports 1, 2, 3) IIL – 10 – 50 µA VIN = 0.45 V Logical 1-to-0 transition current (Ports 1, 2, 3) ITL – 65 – 650 µA VIN = 2 V Maximum output low current per pin (Ports 0, 1, 2, 3) IOLM – 5 mA VOL ≤ 1 V Maximum output low current per port IPL – 30 mA – ILI – ±1 µA 0.45 < VIN < VCC CIO – 10 pF fC = 1 MHz, TA = 25 ˚C Input leakage current Port 0 (if EA=0), EA, P1.2, P1.3, P1.5 as SSC inputs Pin capacitance 7) Semiconductor Group 31 C511 / C513 DC Characteristics (cont’d) VCC = 5 V + 10 %, – 15 %; VSS = 0 V; Parameter Power supply current: C511/C511A/C513/C513A Active mode, 12 MHz 6) Idle mode, 12 MHz 6) Power Down Mode C513A-H Active mode, 12 MHz 6) Idle mode, 12 MHz 6) Power Down Mode Symbol TA = 0 to + 70 ˚C Limit Values Unit Test Condition typ. 8) max. ICC ICC IPD 7 3.5 TBD 9.5 4.5 50 mA mA µA VCC = 5 V,4) VCC = 5 V,5) VCC = 2 … 5.5 V,3) ICC ICC IPD 16 6 TBD TBD TBD 50 mA mA µA VCC = 5 V,4) VCC = 5 V,5) VCC = 2 … 5.5 V3) Notes: 1) Capacitive loading on ports 0 and 2 may cause spurious noise pulses to be superimposed on the VOL of ALE and port 3. The noise is due to external bus capacitance discharging into the port 0 and port 2 pins when these pins make 1-to-0 transitions during bus operation. In the worst case (capacitive loading > 100 pF), the noise pulse on ALE line may exceed 0.8 V. In such cases it may be desirable to qualify ALE with a schmitt-trigger, or use an address latch with a schmitt-trigger strobe input. 2) Capacitive loading on ports 0 and 2 may cause the VOH on ALE and PSEN to momentarily fall bellow the 0.9 VCC specification when the address lines are stabilizing. 3) IPD (Power Down Mode) is measured under following conditions: EA = Port0 = VCC; RESET = VSS; XTAL2 = N.C.; XTAL1 = VCC; all other pins are disconnected. 4) ICC (active mode) is measured with: XTAL1 driven with tCLCH, tCHCL = 5 ns, VIL = VSS + 0.5 V, VIH = VCC – 0.5 V; XTAL2 = N.C.; EA = Port0 = RESET = VCC; all other pins are disconnected. ICC would be slightly higher if a crystal oscillator is used (appr. 1 mA). 5) ICC (Idle mode) is measured with all output pins disconnected and with all peripherals disabled; XTAL1 driven with tCLCH, tCHCL = 5 ns, VIL = VSS + 0.5 V, VIH = VCC – 0.5 V; XTAL2 = N.C.; RESET = EA = VSS; Port0 = VCC; all other pins are disconnected; 6) ICC Max at other frequencies is given by: C511/C511A/C513/C513A : Active mode: TBD Idle mode: TBD C513A-H : Active mode: TBD Idle mode: TBD where fOSC is the oscillator frequency in MHz. ICC values are given in mA and measured at VCC = 5 V. 7) This parameter is periodically sampled and not 100% tested. 8) The typical ICC values are periodically measured at TA = +25 ˚C but not 100% tested. Semiconductor Group 32 C511 / C513 AC Characteristics (applies to all C511/513 Family Microcontrollers) VCC = 5 V + 10 %, – 15 %; VSS = 0 V TA = 0 ˚C to + 70 ˚C (CL for port 0, ALE and PSEN outputs = 100 pF; CL for all other outputs = 80 pF) Program Memory Characteristics Parameter Symbol Limit Values 12 MHz Clock Unit Variable Clock 1/tCLCL = 3.5 MHz to 12 MHz min. max. min. max. ALE pulse width tLHLL 127 – 2tCLCL – 40 – ns Address setup to ALE tAVLL 43 – tCLCL – 40 – ns Address hold after ALE tLLAX 60 – tCLCL – 23 – ns ALE low to valid instr in tLLIV – 233 – 4tCLCL – 100 ns ALE to PSEN tLLPL 58 – tCLCL – 25 – ns PSEN pulse width tPLPH 215 – 3tCLCL – 35 – ns PSEN to valid instr in tPLIV – 150 – 3tCLCL – 100 ns Input instruction hold after PSEN tPXIX 0 – 0 – ns Input instruction float after PSEN tPXIZ*) – 63 – tCLCL – 20 ns Address valid after PSEN tPXAV*) 75 – tCLCL – 8 – ns Address to valid instr in tAVIV – 302 – 5tCLCL – 115 ns Address float to PSEN tAZPL 0 – 0 – ns *) Interfacing the C511/513 microcontrollers to devices with float times up to 75 ns is permissible. This limited bus contention will not cause any damage to port 0 drivers. Semiconductor Group 33 C511 / C513 External Data Memory Characteristics Parameter Symbol Limit Values 12 MHz Clock Unit Variable Clock 1/tCLCL = 3.5 MHz to 12 MHz min. max. min. max. RD pulse width tRLRH 400 – 6tCLCL – 100 – ns WR pulse width tWLWH 400 – 6tCLCL – 100 – ns Address hold after ALE tLLAX2 132 – 2tCLCL – 35 – ns RD to valid data in tRLDV – 252 – 5tCLCL – 165 ns Data hold after RD tRHDX 0 – 0 – ns Data float after RD tRHDZ – 97 – 2tCLCL – 70 ns ALE to valid data in tLLDV – 517 – 8tCLCL – 150 ns Address to valid data in tAVDV – 585 – 9tCLCL – 165 ns ALE to WR or RD tLLWL 200 300 3tCLCL – 50 3tCLCL + 50 ns Address valid to WR or RD tAVWL 203 – 4tCLCL – 130 – ns WR or RD high to ALE high tWHLH 43 123 tCLCL – 40 tCLCL + 40 ns Data valid to WR transition tQVWX 33 – tCLCL – 50 – ns Data setup before WR tQVWH 433 – 7tCLCL – 150 – ns Data hold after WR tWHQX 33 – tCLCL – 50 – ns Address float after RD tRLAZ – 0 – 0 ns Semiconductor Group 34 C511 / C513 SSC Interface Characteristics Parameter Symbol Limit Values Unit 12 MHz Clock min. max. Clock Cycle Time : Master Mode Slave Mode tSCLK tSCLK 666 600 – – ns ns Clock high time tSCH 250 – ns Clock low time tSCL 250 – ns Data output delay tD – 100 ns Data output hold tHO 0 – ns Data input setup tS 100 – ns Data input hold tHI 100 – ns TC bit set delay tDTC – 16 tCLCL ns External Clock Characteristics Parameter Symbol Limit Values Unit Variable Clock Freq. = 3.5 MHz to 12 MHz min. max. Oscillator period tCLCL 83.3 285 ns High time tCHCX 20 tCLCL – tCLCX ns Low time tCLCX 20 tCLCL – tCHCX ns Rise time tCLCH – 20 ns Fall time tCHCL – 20 ns Semiconductor Group 35 C511 / C513 Figure 11 Program Memory Read Cycle Figure 12 Data Memory Read Cycle Semiconductor Group 36 C511 / C513 Figure 13 Data Memory Write Cycle Semiconductor Group 37 C511 / C513 Notes: Shown is the data/clock relationship for CPOL = CPHA = 1. The timing diagram is valid for the other cases accordingly. In the case of slave mode and CPHA = 0, the output delay for the MSB applies to the falling edge of SLS (if transmitter is enabled). In the case of master mode and CPHA = 0, the MSB becomes valid after the data has been written into the shift register, i.e. at least one half SCLK clock cycle before the first clock transition. Figure 14 SSC Timing Figure 15 External Clock Drive at XTAL1 Semiconductor Group 38 C511 / C513 ROM Verification Characteristics (only ROM versions C511 / C511A / C513 / C513A) Parameter Symbol Limit Values min. max. Unit Address to valid data tAVQV – 48tCLCL ns ENABLE to valid data tELQV – 48tCLCL ns Data float after ENABLE tEHQZ 0 48tCLCL ns Oscillator frequency 1/tCLCL 4 6 MHz Device Type ROM Size Active Address Lines at Port 2 Inactive Address Lines at Port 2 C511 2.5 KB P2.0 - P2.3 = A8 - A11 P2.4 - P2.6 = VSS C511A 4 KB P2.0 - P2.3 = A8 - A11 P2.4 - P2.6 = VSS C513 8 KB P2.0 - P2.4 = A8 - A12 P2.5 - P2.6 = VSS C513A 12/16 KB P2.0 - P2.5 = A8 - A13 P2.6 = VSS Figure 16 ROM Verification Timing Semiconductor Group 39 C511 / C513 AC Characteristics of C513A-H Programming Interface VCC = 5 V ± 10 %, VSS = 0 V; TA = +25 ˚C ± 10 ˚C; 1/tCLCL = 8 MHz Parameter Symbol Limit Values min. max. Unit ALE pulse width tPLL 60 – ns Address setup to ALE tPAL 20 – ns Address hold after ALE tPLA 20 – ns Address to valid data out tPAD – 230 ns PRD/PWR pulse width tPCC 250 – ns PRD to valid data out tPRDV – 200 ns Data hold after PWR tPWDH 0 – ns Data float after PRD tPDZ – 40 ns Chip select setup to ALE active tPCS 0 – ns Chip select hold after PRD/PWR inactive tPCH 0 – ns ALE to PWR or PRD tPLC 90 – ns PWR or PRD high to ALE high tPCL 20 – ns Data setup before PWR rising edge tPWDS 50 – ns Data hold after PWR rising edge tPWDH 0 – ns Data float after PCS tPDF – 40 ns Semiconductor Group 40 C511 / C513 Figure 17 C513A-H Programming Interface Read Cycle Figure 18 C513A-H Programming Interface Write Cycle Semiconductor Group 41 C511 / C513 Reset Characteristics (C513A-H only) Parameter Symbol Limit Values 12 MHz Clock RESET pulse width tRLRH Variable Clock 1/tCLCL = 3.5 MHz to 12 MHz min. max. min. max. 10 – 10 – Figure 19 C513A-H Reset Pulse Semiconductor Group Unit 42 ms C511 / C513 AC Inputs during testing are driven at VCC - 0.5 V for a logic ’1’ and 0.45 V for a logic ’0’. Timing measurements are made at VIHmin for a logic ’1’ and VILmax for a logic ’0’. Figure 20 AC Testing: Input, Output Waveforms For timing purposes a port pin is no longer floating when a 100 mV change from load voltage occurs and begins to float when a 100 mV change from the loaded VOH/VOL level occurs. IOL/IOH ≥ ± 20 mA Figure 21 AC Testing: Float Waveforms Figure 22 Recommended Oscillator Circuits for Crystal Oscillator Semiconductor Group 43