ATMEL TS87C58X2-MCA

Features
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80C52 Compatible
8051 pin and instruction compatible
Four 8-bit I/O ports
Three 16-bit timer/counters
256 bytes scratchpad RAM
High-Speed Architecture
40 MHz @ 5V, 30MHz @ 3V
X2 Speed Improvement capability (6 clocks/machine cycle)
– 30 MHz @ 5V, 20 MHz @ 3V (Equivalent to
– 60 MHz @ 5V, 40 MHz @ 3V)
Dual Data Pointer
On-chip ROM/EPROM (16K-bytes, 32K-bytes)
Programmable Clock Out and Up/Down Timer/Counter 2
Hardware Watchdog Timer (One-time enabled with Reset-Out)
Asynchronous port reset
Interrupt Structure with
6 Interrupt sources
4 level priority interrupt system
Full duplex Enhanced UART
Framing error detection
Automatic address recognition
Low EMI (inhibit ALE)
Power Control modes
Idle mode
Power-down mode
Power-off Flag
Once mode (On-chip Emulation)
Power supply: 4.5-5.5V, 2.7-5.5V
Temperature ranges: Commercial (0 to 70oC) and Industrial (-40 to 85 oC)
Packages: PDIL40, PLCC44, VQFP44 1.4, PQFP44 F1, CQPJ44 (window), CDIL40
(window)
8-bit CMOS
Microcontroller
16/32 Kbytes
ROM/OTP
TS80C54/58X2
TS87C54/58X2
AT80C54/58X2
AT87C54/58X2
1. Description
TS80C54/58X2 is high performance CMOS ROM, OTP and EPROM versions of the
80C51 CMOS single chip 8-bit microcontroller.
The TS8 0C54/58X2 retains a ll fe atures of the Atmel 80 C51 with e xtend ed
ROM/EPROM capacity (16/32 Kbytes), 256 bytes of internal RAM, a 6-source , 4-level
interrupt system, an on-chip oscilator and three timer/counters.
In addition, the TS80C54/58X2 a Hardware Watchdog Timer, a more versatile serial
channel that facilitates multiprocessor communication (EUART) and a X2 speed
improvement mechanism.
The fully static design of the TS80C54/58X2 allows to reduce system power consumption by bringing the clock frequency down to any value, even DC, without loss of data.
Rev. 4431E–8051–04/06
The TS80C54/58X2 has 2 software-selectable modes of reduced activity for further reduction in
power consumption. In the idle mode the CPU is frozen while the timers, the serial port and the
interrupt system are still operating. In the power-down mode the RAM is saved and all other
functions are inoperative.
PDIL40
PLCC44
PQFP44 F1
VQFP44 1.4
ROM (bytes)
EPROM (bytes)
TS80C54X2
16k
0
TS80C58X2
32k
0
TS87C54X2
0
16k
TS87C58X2
0
32k
(2) (2)
(1)
XTAL1
EUART
XTAL2
ALE/ PROG
C51
CORE
PSEN
ROM
/EPROM
16/32Kx8
RAM
256x8
T2
T2EX
Vss
Vcc
TxD
RxD
2. Block Diagram
(1)
Timer2
IB-bus
CPU
EA/VPP
Timer 0
Timer 1
(2)
Parallel I/O Ports
INT
Ctrl
Watch
Dog
P3
P2
P1
P0
INT1
(2) (2)
T1
(2) (2)
INT0
Port 0 Port 1 Port 2 Port 3
RESET
WR
(2)
T0
RD
(1): Alternate function of Port 1
(2): Alternate function of Port 3
2
AT/TS8xC54/8X2
4431E–8051–04/06
AT/TS8xC54/8X2
4. SFR Mapping
The Special Function Registers (SFRs) of the TS80C54/58X2 fall into the following categories:
• C51 core registers: ACC, B, DPH, DPL, PSW, SP, AUXR1
• I/O port registers: P0, P1, P2, P3
• Timer registers: T2CON, T2MOD, TCON, TH0, TH1, TH2, TMOD, TL0, TL1, TL2, RCAP2L,
RCAP2H
• Serial I/O port registers: SADDR, SADEN, SBUF, SCON
• Power and clock control registers: PCON
• HDW Watchdog Timer Reset: WDTRST, WDTPRG
• Interrupt system registers: IE, IP, IPH
• Others: AUXR, CKCON
3
4431E–8051–04/06
Table 4-1.
All SFRs with their address and their reset value
Bit
addressable
0/8
Non Bit addressable
1/9
2/A
3/B
4/C
5/D
6/E
7/F
F8h
F0h
FFh
B
0000 0000
F7h
E8h
E0h
EFh
ACC
0000 0000
E7h
D8h
DFh
D0h
PSW
0000 0000
C8h
T2CON
0000 0000
D7h
T2MOD
XXXX XX00
RCAP2L
0000 0000
RCAP2H
0000 0000
TL2
0000 0000
TH2
0000 0000
CFh
C0h
B8h
B0h
C7h
IP
SADEN
XX00 0000
0000 0000
BFh
P3
IPH
XX00 0000
1111 1111
A8h
A0h
98h
90h
IE
SADDR
0X00 0000
0000 0000
AFh
P2
AUXR1
WDTRST
WDTPRG
1111 1111
XXXX 0XX0
XXXX XXXX
XXXX X000
SCON
SBUF
0000 0000
XXXX XXXX
B7h
A7h
9Fh
P1
97h
1111 1111
88h
80h
TCON
TMOD
TL0
TL1
TH0
TH1
0000 0000
0000 0000
0000 0000
0000 0000
0000 0000
0000 0000
P0
1111 1111
SP
0000 0111
DPL
0000 0000
DPH
0000 0000
0/8
1/9
2/A
3/B
AUXR
XXXX XXX0
CKCON
8Fh
XXXX XXX0
PCON
87h
00X1 0000
4/C
5/D
6/E
7/F
reserved
4
AT/TS8xC54/8X2
4431E–8051–04/06
AT/TS8xC54/8X2
31
30
EA/VPP
ALE/PROG
PSEN
P2.7 / A15
P2.6 / A14
P2.5 / A13
P3.4/T0
P3.5/T1
P3.6/WR
14
15
26
16
25
P3.7/RD
XTAL2
17
18
24
23
P2.2 / A10
XTAL1
19
20
22
21
P2.1 / A9
37
P0.6/AD6
RST
10
36
P0.7/AD7
P3.0/RxD
35
34
EA/VPP
NIC*
11
12
P3.1/TxD
13
33
ALE/PROG
P3.2/INT0
P3.3/INT1
14
15
32
31
PSEN
P3.4/T0
P3.5/T1
16
30
P2.6/A14
17
29
P2.5/A13
PLCC/CQPJ 44
NIC*
P2.7/A15
P2.3/A11
P2.4/A12
P2.2/A10
P2.1/A9
P3.6/WR
P1.0/T2
P1.1/T2EX
P1.2
P1.3
P0.5/AD5
18 19 20 21 22 23 24 25 26 27 28
P2.0 / A8
P1.4
VSS
P2.4 / A12
P2.3 / A11
9
NIC*
P2.0/A8
13
29
28
27
P1.7
VSS
CDIL40
39
38
P0.4/AD4
P1.6
XTAL1
PDIL/
6 5 4 3 2 1 44 43 42 41 40
7
8
P3.7/RD
XTAL2
11
12
P0.2/AD2
P0.3/AD3
10
P0.1/AD1
P0.7 / A7
P0.0/AD0
32
VCC
9
VSS1/NIC*
P1.5
P1.0/T2
P0.6 / A6
P0.5 / A5
P1.2
33
P1.4
P0.3 / A3
P0.4 / A4
7
8
36
35
34
5
6
P1.3
P0.1 / A1
P0.2 / A2
37
P0.3/AD3
P3.2/INT0
P3.3/INT1
3
4
P0.2/AD2
P3.0/RxD
P3.1/TxD
P0.0 / A0
P0.1/AD1
P1.7
RST
VCC
39
38
P0.0/AD0
P1.6
40
2
VCC
P1.4
P1.5
1
VSS1/NIC*
P1.0 / T2
P1.1 / T2EX
P1.2
P1.3
P1.1/T2EX
5. Pin Configuration
44 43 42 41 40 39 38 37 36 35 34
P1.5
33
32
P0.4/AD4
P1.6
1
2
P1.7
RST
3
4
31
P0.6/AD6
P0.7/AD7
P3.0/RxD
NIC*
P3.1/TxD
P3.2/INT0
P3.3/INT1
P3.4/T0
P3.5/T1
30
5
6
7
8
29
28
27
PQFP44 F1
VQFP44 1.4
26
25
9
10
11
P0.5/AD5
EA/VPP
NIC*
ALE/PROG
PSEN
24
P2.7/A15
P2.6/A14
23
P2.5/A13
P2.4/A12
P2.3/A11
P2.2/A10
P2.1/A9
P2.0/A8
NIC*
VSS
XTAL1
XTAL2
P3.7/RD
P3.6/WR
12 13 14 15 16 17 18 19 20 21 22
*NIC: No Internal Connection
5
4431E–8051–04/06
Table 5-1.
Pin Description for 40/44 pin packages
PIN NUMBER
TYPE
MNEMONIC
DIL
LCC
VQFP 1.4
VSS
20
22
16
I
Ground: 0V reference
1
39
I
Optional Ground: Contact the Sales Office for ground connection.
Power Supply: This is the power supply voltage for normal, idle and power-down
operation
Vss1
Name And Function
VCC
40
44
38
I
P0.0-P0.7
39-32
43-36
37-30
I/O
Port 0: Port 0 is an open-drain, bidirectional I/O port. Port 0 pins that have 1s written to
them float and can be used as high impedance inputs. Port 0 pins must be polarized to
Vcc or Vss in order to prevent any parasitic current consumption. Port 0 is also the
multiplexed low-order address and data bus during access to external program and
data memory. In this application, it uses strong internal pull-up when emitting 1s. Port 0
also inputs the code bytes during EPROM programming. External pull-ups are required
during program verification during which P0 outputs the code bytes.
P1.0-P1.7
1-8
2-9
40-44
1-3
I/O
Port 1: Port 1 is an 8-bit bidirectional I/O port with internal pull-ups. Port 1 pins that
have 1s written to them are pulled high by the internal pull-ups and can be used as
inputs. As inputs, Port 1 pins that are externally pulled low will source current because
of the internal pull-ups. Port 1 also receives the low-order address byte during memory
programming and verification.
Alternate functions for Port 1 include:
P2.0-P2.7
1
2
40
I/O
2
3
41
I
21-28
24-31
18-25
I/O
T2 (P1.0): Timer/Counter 2 external count input/Clockout
T2EX (P1.1): Timer/Counter 2 Reload/Capture/Direction Control
Port 2: Port 2 is an 8-bit bidirectional I/O port with internal pull-ups. Port 2 pins that
have 1s written to them are pulled high by the internal pull-ups and can be used as
inputs. As inputs, Port 2 pins that are externally pulled low will source current because
of the internal pull-ups. Port 2 emits the high-order address byte during fetches from
external program memory and during accesses to external data memory that use 16bit addresses (MOVX @DPTR).In this application, it uses strong internal pull-ups
emitting 1s. During accesses to external data memory that use 8-bit addresses (MOVX
@Ri), port 2 emits the contents of the P2 SFR. Some Port 2 pins receive the high order
address bits during EPROM programming and verification:
P2.0 to P2.5 for A8 to A13
P3.0-P3.7
10-17
11,
13-19
5,
7-13
I/O
Port 3: Port 3 is an 8-bit bidirectional I/O port with internal pull-ups. Port 3 pins that
have 1s written to them are pulled high by the internal pull-ups and can be used as
inputs. As inputs, Port 3 pins that are externally pulled low will source current because
of the internal pull-ups. Some Port 3 pin P3.4 receive the high order address bits during
EPROM programming and verification for TS8xC58X2 devices.
Port 3 also serves the special features of the 80C51 family, as listed below.
10
11
5
I
RXD (P3.0): Serial input port
11
13
7
O
TXD (P3.1): Serial output port
12
14
8
I
INT0 (P3.2): External interrupt 0
13
15
9
I
INT1 (P3.3): External interrupt 1
14
16
10
I
T0 (P3.4): Timer 0 external input
15
17
11
I
T1 (P3.5): Timer 1 external input
16
18
12
O
WR (P3.6): External data memory write strobe
17
19
13
O
RD (P3.7): External data memory read strobe
P3.4 also receives A14 during TS87C58X2 EPROM Programming.
Reset
6
9
10
4
I
Reset: A high on this pin for two machine cycles while the oscillator is running, resets
the device. An internal diffused resistor to VSS permits a power-on reset using only an
external capacitor to VCC.
AT/TS8xC54/8X2
4431E–8051–04/06
AT/TS8xC54/8X2
Table 5-1.
Pin Description for 40/44 pin packages
PIN NUMBER
TYPE
MNEMONIC
DIL
MNEMONIC
LCC
VQFP 1.4
PIN NUMBER
Name And Function
TYPE
NAME AND FUNCTION
ALE/PROG
30
33
27
O (I)
Address Latch Enable/Program Pulse: Output pulse for latching the low byte of the
address during an access to external memory. In normal operation, ALE is emitted at a
constant rate of 1/6 (1/3 in X2 mode) the oscillator frequency, and can be used for
external timing or clocking. Note that one ALE pulse is skipped during each access to
external data memory. This pin is also the program pulse input (PROG) during EPROM
programming. ALE can be disabled by setting SFR’s AUXR.0 bit. With this bit set, ALE
will be inactive during internal fetches.
PSEN
29
32
26
O
Program Store ENable: The read strobe to external program memory. When
executing code from the external program memory, PSEN is activated twice each
machine cycle, except that two PSEN activations are skipped during each access to
external data memory. PSEN is not activated during fetches from internal program
memory.
EA/VPP
31
35
29
I
External Access Enable/Programming Supply Voltage: EA must be externally held
low to enable the device to fetch code from external program memory locations 0000H
and 3FFFH (54X2) or 7FFFH (58X2). If EA is held high, the device executes from
internal program memory unless the program counter contains an address greater
than 3FFFH (54X2) or 7FFFH (58X2). This pin also receives the 12.75V programming
supply voltage (VPP) during EPROM programming. If security level 1 is programmed,
EA will be internally latched on Reset.
XTAL1
19
21
15
I
Crystal 1: Input to the inverting oscillator amplifier and input to the internal clock
generator circuits.
XTAL2
18
20
14
O
Crystal 2: Output from the inverting oscillator amplifier
7
4431E–8051–04/06
6. TS80C54/58X2 Enhanced Features
In comparison to the original 80C52, the TS80C54/58X2 implements some new features, which
are:
• The X2 option.
• The Dual Data Pointer.
• The Watchdog.
• The 4 level interrupt priority system.
• The power-off flag.
• The ONCE mode.
• The ALE disabling.
• Some enhanced features are also located in the UART and the timer 2.
6.1
X2 Feature
The TS80C54/58X2 core needs only 6 clock periods per machine cycle. This feature called ”X2”
provides the following advantages:
• Divide frequency crystals by 2 (cheaper crystals) while keeping same CPU power.
• Save power consumption while keeping same CPU power (oscillator power saving).
• Save power consumption by dividing dynamically operating frequency by 2 in operating and
idle modes.
• Increase CPU power by 2 while keeping same crystal frequency.
In order to keep the original C51 compatibility, a divider by 2 is inserted between the XTAL1 signal and the main clock input of the core (phase generator). This divider may be disabled by
software.
6.1.1
Description
The clock for the whole circuit and peripheral is first divided by two before being used by the
CPU core and peripherals. This allows any cyclic ratio to be accepted on XTAL1 input. In X2
mode, as this divider is bypassed, the signals on XTAL1 must have a cyclic ratio between 40 to
60%. Figure 6-2. shows the clock generation block diagram. X2 bit is validated on XTAL1÷2 rising edge to avoid glitches when switching from X2 to STD mode. Figure 6-2. shows the mode
switching waveforms.
Figure 6-1.
Clock Generation Diagram
2
XTAL1
FXTAL
XTAL1:2
0
state machine: 6 clock cycles.
1
CPU control
FOSC
X2
CKCON reg
8
AT/TS8xC54/8X2
4431E–8051–04/06
AT/TS8xC54/8X2
Figure 6-2.
Mode Switching Waveforms
XTAL1
XTAL1:2
X2 bit
CPU clock
STD Mode
X2 Mode
STD Mode
The X2 bit in the CKCON register (See Table 6-1.) allows to switch from 12 clock cycles per
instruction to 6 clock cycles and vice versa. At reset, the standard speed is activated (STD
mode). Setting this bit activates the X2 feature (X2 mode).
CAUTION
In order to prevent any incorrect operation while operating in X2 mode, user must be aware that
all peripherals using clock frequency as time reference (UART, timers) will have their time reference divided by two. For example a free running timer generating an interrupt every 20 ms will
then generate an interrupt every 10 ms. UART with 4800 baud rate will have 9600 baud rate.
9
4431E–8051–04/06
Table 6-1.
CKCON Register
CKCON - Clock Control Register (8Fh)
7
6
5
4
3
2
1
0
-
-
-
-
-
-
-
X2
Bit
Bit
Number
Mnemonic
7
-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
6
-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
5
-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
4
-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
3
-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
2
-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
1
-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
0
X2
Description
CPU and peripheral clock bit
Clear to select 12 clock periods per machine cycle (STD mode, FOSC =FXTAL/2).
Set to select 6 clock periods per machine cycle (X2 mode, FOSC =FXTAL).
Reset Value = XXXX XXX0b
Not bit addressable
For further details on the X2 fe ature, please refer to ANM072 ava ilable on the web
(http://www.atmel.com)
10
AT/TS8xC54/8X2
4431E–8051–04/06
AT/TS8xC54/8X2
7. Dual Data Pointer Register Ddptr
The additional data pointer can be used to speed up code execution and reduce code size in a
number of ways.
The dual DPTR structure is a way by which the chip will specify the address of an external data
memory location. There are two 16-bit DPTR registers that address the external memory, and a
single bit called
DPS = AUXR1/bit0 (See Table 7-1.) that allows the program code to switch between them
(Refer to Figure 7-1).
Figure 7-1.
Use of Dual Pointer
External Data Memory
7
0
DPS
AUXR1(A2H)
DPTR1
DPTR0
DPH(83H) DPL(82H)
11
4431E–8051–04/06
Table 7-1.
AUXR1: Auxiliary Register 1
7
6
5
4
3
2
1
0
-
-
-
-
GF3
0
-
DPS
Bit
Bit
Number
Mnemonic
7
-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
6
-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
5
-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
4
-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
3
GF3
2
0
Reserved
Always stuck at 0.
1
-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
0
DPS
Description
This bit is a general purpose user flag
Data Pointer Selection
Clear to select DPTR0.
Set to select DPTR1.
Reset Value = XXXX 00X0
Not bit addressable
User software should not write 1s to reserved bits. These bits may be used in future 8051 family
products to invoke new feature. In that case, the reset value of the new bit will be 0, and its
active value will be 1. The value read from a reserved bit is indeterminate.
12
AT/TS8xC54/8X2
4431E–8051–04/06
AT/TS8xC54/8X2
7.1
Application
Software can take advantage of the additional data pointers to both increase speed and reduce
code size, for example, block operations (copy, compare, search ...) are well served by using
one data pointer as a ’source’ pointer and the other one as a "destination" pointer.
ASSEMBLY LANGUAGE
; Block move using dual data pointers
; Destroys DPTR0, DPTR1, A and PSW
; note: DPS exits opposite of entry state
; unless an extra INC AUXR1 is added
;
00A2
AUXR1 EQU 0A2H
;
0000 909000
MOV DPTR,#SOURCE
0003 05A2
INC
AUXR1
0005 90A000
MOV DPTR,#DEST
0008
LOOP:
0008 05A2
INC
AUXR1
000A E0
MOVX A,@DPTR
000B A3
INC
DPTR
000C 05A2
INC
AUXR1
000E F0
MOVX @DPTR,A
000F A3
INC
DPTR
0010 70F6
JNZ
LOOP
0012 05A2
INC
AUXR1
; address of SOURCE
; switch data pointers
; address of DEST
; switch data pointers
; get a byte from SOURCE
; increment SOURCE address
; switch data pointers
; write the byte to DEST
; increment DEST address
; check for 0 terminator
; (optional) restore DPS
INC is a short (2 bytes) and fast (12 clocks) way to manipulate the DPS bit in the AUXR1 SFR.
However, note that the INC instruction does not directly force the DPS bit to a particular state,
but simply toggles it. In simple routines, such as the block move example, only the fact that DPS
is toggled in the proper sequence matters, not its actual value. In other words, the block move
routine works the same whether DPS is '0' or '1' on entry. Observe that without the last instruction (INC AUXR1), the routine will exit with DPS in the opposite state.
13
4431E–8051–04/06
8. Timer 2
The timer 2 in the TS80C54/58X2 is compatible with the timer 2 in the 80C52.
It is a 16-bit timer/counter: the count is maintained by two eight-bit timer registers, TH2 and TL2,
connected in cascade. It is controlled by T2CON register (See Table 8-1) and T2MOD register
(See Table 8-2). Timer 2 operation is similar to Timer 0 and Timer 1. C/T2 selects FOSC/12 (timer
operation) or external pin T2 (counter operation) as the timer clock input. Setting TR2 allows TL2
to be incremented by the selected input.
Timer 2 has 3 operating modes: capture, autoreload and Baud Rate Generator. These modes
are selected by the combination of RCLK, TCLK and CP/RL2 (T2CON), as described in the
Atmel Wireless & Microcontrollers 8-bit Microcontroller Hardware description.
Refer to the Atmel Wireless & Microcontrollers 8-bit Microcontroller Hardware description for the
description of Capture and Baud Rate Generator Modes.
In TS80C54/58X2 Timer 2 includes the following enhancements:
• Auto-reload mode with up or down counter
• Programmable clock-output
8.1
Auto-Reload Mode
The auto-reload mode configures timer 2 as a 16-bit timer or event counter with automatic
reload. If DCEN bit in T2MOD is cleared, timer 2 behaves as in 80C52 (refer to the Atmel Wireless & Microcontrollers 8-bit Microcontroller Hardware description). If DCEN bit is set, timer 2
acts as an Up/down timer/counter as shown in Figure 8-1. In this mode the T2EX pin controls
the direction of count.
When T2EX is high, timer 2 counts up. Timer overflow occurs at FFFFh which sets the TF2 flag
and generates an interrupt request. The overflow also causes the 16-bit value in RCAP2H and
RCAP2L registers to be loaded into the timer registers TH2 and TL2.
When T2EX is low, timer 2 counts down. Timer underflow occurs when the count in the timer
registers TH2 and TL2 equals the value stored in RCAP2H and RCAP2L registers. The underflow sets TF2 flag and reloads FFFFh into the timer registers.
The EXF2 bit toggles when timer 2 overflows or underflows according to the the direction of the
count. EXF2 does not generate any interrupt. This bit can be used to provide 17-bit resolution
14
AT/TS8xC54/8X2
4431E–8051–04/06
AT/TS8xC54/8X2
Figure 8-1.
Auto-Reload Mode Up/Down Counter (DCEN = 1)
(:6 in X2 mode)
XTAL1
FXTAL
:12
0
FOSC
1
T2
TR2
C/T2
T2CONreg
T2CONreg
(DOWN COUNTING RELOAD VALUE)
FFh
FFh
(8-bit)
(8-bit)
T2EX:
if DCEN=1, 1=UP
if DCEN=1, 0=DOWN
TOG-
T2CONreg
EXF2
TL2
(8-bit)
TH2
(8-bit)
TF2
TIMER 2
INTERRUPT
T2CONreg
RCAP2L RCAP2H
(8-bit)
(8-bit)
(UP COUNTING RELOAD VALUE)
8.1.1
Programmable Clock-Output
In the clock-out mode, timer 2 operates as a 50%-duty-cycle, programmable clock generator
(See Figure 8-2) . The input clock increments TL2 at frequency F OSC/2. The timer repeatedly
counts to overflow from a loaded value. At overflow, the contents of RCAP2H and RCAP2L registers are loaded into TH2 and TL2. In this mode, timer 2 overflows do not generate interrupts.
The formula gives the clock-out frequency as a function of the system oscillator frequency and
the value in the RCAP2H and RCAP2L registers :
Clock – OutFrequency
F osc
RCAP H RCAP L
= ---------------------------------------------------------------------------------------4 × ( 65536 –
2 ⁄
2 )
For a 16 MHz system clock, timer 2 has a programmable frequency range of 61 Hz
(FOSC/216) to 4 MHz (FOSC/4). The generated clock signal is brought out to T2 pin (P1.0).
Timer 2 is programmed for the clock-out mode as follows:
• Set T2OE bit in T2MOD register.
• Clear C/T2 bit in T2CON register.
• Determine the 16-bit reload value from the formula and enter it in RCAP2H/RCAP2L
registers.
15
4431E–8051–04/06
• Enter a 16-bit initial value in timer registers TH2/TL2. It can be the same as the reload value
or a different one depending on the application.
• To start the timer, set TR2 run control bit in T2CON register.
It is possible to use timer 2 as a baud rate generator and a clock generator simultaneously. For
this configuration, the baud rates and clock frequencies are not independent since both functions use the values in the RCAP2H and RCAP2L registers.
Figure 8-2.
Clock-Out Mode C/T2 = 0
:2
XTAL1
(:1 in X2 mode)
TR2
T2CON reg
TL2
(8-bit)
TH2
(8-bit)
OVERFLOW
RCAP2L
(8-bit)
RCAP2H
(8-bit)
Toggle
T2
Q
D
T2OE
T2MOD reg
T2EX
EXF2
EXEN2
T2CON reg
16
TIMER 2
INTERRUPT
T2CON reg
AT/TS8xC54/8X2
4431E–8051–04/06
AT/TS8xC54/8X2
Table 8-1.
T2CON Register
T2CON - Timer 2 Control Register (C8h)
7
6
5
4
3
2
1
0
TF2
EXF2
RCLK
TCLK
EXEN2
TR2
C/T2#
CP/RL2#
Bit
Bit
Number
Mnemonic
7
TF2
Description
Timer 2 overflow Flag
Must be cleared by software.
Set by hardware on timer 2 overflow, if RCLK = 0 and TCLK = 0.
6
EXF2
Timer 2 External Flag
Set when a capture or a reload is caused by a negative transition on T2EX pin if EXEN2=1.
When set, causes the CPU to vector to timer 2 interrupt routine when timer 2 interrupt is
enabled.
Must be cleared by software. EXF2 doesn’t cause an interrupt in Up/down counter mode
(DCEN = 1)
5
RCLK
Receive Clock bit
Clear to use timer 1 overflow as receive clock for serial port in mode 1 or 3.
Set to use timer 2 overflow as receive clock for serial port in mode 1 or 3.
4
TCLK
Transmit Clock bit
Clear to use timer 1 overflow as transmit clock for serial port in mode 1 or 3.
Set to use timer 2 overflow as transmit clock for serial port in mode 1 or 3.
Timer 2 External Enable bit
Clear to ignore events on T2EX pin for timer 2 operation.
Set to cause a capture or reload when a negative transition on T2EX pin is detected, if timer
2 is not used to clock the serial port.
3
EXEN2
2
TR2
1
C/T2#
Timer/Counter 2 select bit
Clear for timer operation (input from internal clock system: FOSC ).
Set for counter operation (input from T2 input pin, falling edge trigger). Must be 0 for clock
out mode.
CP/RL2#
Timer 2 Capture/Reload bit
If RCLK=1 or TCLK=1, CP/RL2# is ignored and timer is forced to auto-reload on timer 2
overflow.
Clear to auto-reload on timer 2 overflows or negative transitions on T2EX pin if EXEN2=1.
Set to capture on negative transitions on T2EX pin if EXEN2=1.
0
Timer 2 Run control bit
Clear to turn off timer 2.
Set to turn on timer 2.
Reset Value = 0000 0000b
Bit addressable
17
4431E–8051–04/06
Table 8-2.
T2MOD Register
T2MOD - Timer 2 Mode Control Register (C9h)
7
6
5
4
3
2
1
0
-
-
-
-
-
-
T2OE
DCEN
Bit
Bit
Number
Mnemonic
7
-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
6
-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
5
-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
4
-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
3
-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
2
-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
1
T2OE
Timer 2 Output Enable bit
Clear to program P1.0/T2 as clock input or I/O port.
Set to program P1.0/T2 as clock output.
0
DCEN
Down Counter Enable bit
Clear to disable timer 2 as up/down counter.
Set to enable timer 2 as up/down counter.
Description
Reset Value = XXXX XX00b
Not bit addressable
18
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AT/TS8xC54/8X2
9. TS80C54/58X2 Serial I/O Port
The serial I/O port in the TS80C54/58X2 is compatible with the serial I/O port in the 80C52.
It provides both synchronous and asynchronous communication modes. It operates as an Universal Asynchronous Receiver and Transmitter (UART) in three full-duplex modes (Modes 1, 2
and 3). Asynchronous transmission and reception can occur simultaneously and at different
baud rates
Serial I/O port includes the following enhancements:
• Framing error detection
• Automatic address recognition
9.1
Framing Error Detection
Framing bit error detection is provided for the three asynchronous modes (modes 1, 2 and 3). To
enable the framing bit error detection feature, set SMOD0 bit in PCON register (See Figure 9-1).
Figure 9-1.
Framing Error Block Diagram
SM0/FE SM1
SM2
REN
TB8
RB8
TI
RI
SCON (98h)
Set FE bit if stop bit is 0 (framing error) (SMOD0 = 1)
SM0 to UART mode control (SMOD = 0)
SMOD1SMOD0
-
POF
GF1
GF0
PD
PCON (87h)
IDL
To UART framing error control
When this feature is enabled, the receiver checks each incoming data frame for a valid stop bit.
An invalid stop bit may result from noise on the serial lines or from simultaneous transmission by
two CPUs. If a valid stop bit is not found, the Framing Error bit (FE) in SCON register (See Table
9-3.) bit is set.
Software may examine FE bit after each reception to check for data errors. Once set, only software or a reset can clear FE bit. Subsequently received frames with valid stop bits cannot clear
FE bit. When FE feature is enabled, RI rises on stop bit instead of the last data bit (See Figure 92. and Figure 9-3.).
Figure 9-2.
UART Timings in Mode 1
RXD
D0
Start
bit
D1
D2
D3
D4
Data byte
D5
D6
D7
Stop
bit
RI
SMOD0=X
FE
SMOD0=1
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4431E–8051–04/06
Figure 9-3.
UART Timings in Modes 2 and 3
RXD
D0
D1
D2
Start
bit
D3
D4
Data byte
D5
D6
D7
D8
Ninth Stop
bit
bit
RI
SMOD0=0
RI
SMOD0=1
FE
SMOD0=1
9.1.1
Automatic Address Recognition
The automatic address recognition feature is enabled when the multiprocessor communication
feature is enabled (SM2 bit in SCON register is set).
Implemented in hardware, automatic address recognition enhances the multiprocessor communication feature by allowing the serial port to examine the address of each incoming command
frame. Only when the serial port recognizes its own address, the receiver sets RI bit in SCON
register to generate an interrupt. This ensures that the CPU is not interrupted by command
frames addressed to other devices.
If desired, you may enable the automatic address recognition feature in mode 1. In this configuration, the stop bit takes the place of the ninth data bit. Bit RI is set only when the received
command frame address matches the device’s address and is terminated by a valid stop bit.
To support automatic address recognition, a device is identified by a given address and a broadcast address.
NOTE: The multiprocessor communication and automatic address recognition features cannot
be enabled in mode 0 (i.e. setting SM2 bit in SCON register in mode 0 has no effect).
9.1.2
Given Address
Each device has an individual address that is specified in SADDR register; the SADEN register
is a mask byte that contains don’t-care bits (defined by zeros) to form the device’s given
address. The don’t-care bits provide the flexibility to address one or more slaves at a time. The
following example illustrates how a given address is formed.
To address a device by its individual address, the SADEN mask byte must be 1111 1111b.
For example:
SADDR
SADEN
Given
20
0101 0110b
1111 1100b
0101 01XXb
AT/TS8xC54/8X2
4431E–8051–04/06
AT/TS8xC54/8X2
The following is an example of how to use given addresses to address different slaves:
Slave A:
SADDR
SADEN
Given
1111 0001b
1111 1010b
1111 0X0Xb
Slave B:
SADDR
SADEN
Given
1111 0011b
1111 1001b
1111 0XX1b
Slave C:
SADDR
SADEN
Given
1111 0010b
1111 1101b
1111 00X1b
The SADEN byte is selected so that each slave may be addressed separately.
For slave A, bit 0 (the LSB) is a don’t-care bit; for slaves B and C, bit 0 is a 1. To communicate
with slave A only, the master must send an address where bit 0 is clear (e.g. 1111 0000b).
For slave A, bit 1 is a 1; for slaves B and C, bit 1 is a don’t care bit. To communicate with slaves
B and C, but not slave A, the master must send an address with bits 0 and 1 both set (e.g. 1111
0011b).
To communicate with slaves A, B and C, the master must send an address with bit 0 set, bit 1
clear, and bit 2 clear (e.g. 1111 0001b).
9.1.3
Broadcast Address
A broadcast address is formed from the logical OR of the SADDR and SADEN registers with
zeros defined as don’t-care bits, e.g.:
SADDR
SADEN
Broadcast =SADDR OR SADEN
0101 0110b
1111 1100b
1111 111Xb
The use of don’t-care bits provides flexibility in defining the broadcast address, however in most
applications, a broadcast address is FFh. The following is an example of using broadcast
addresses:
Slave A:
SADDR
1111 0001b
SADEN
1111 1010b
Broadcast 1111 1X11b,
Slave B:
SADDR
1111 0011b
SADEN
1111 1001b
Broadcast 1111 1X11B,
Slave C:
SADDR=
1111 0010b
SADEN
1111 1101b
Broadcast 1111 1111b
For slaves A and B, bit 2 is a don’t care bit; for slave C, bit 2 is set. To communicate with all of
the slaves, the master must send an address FFh. To communicate with slaves A and B, but not
slave C, the master can send and address FBh.
9.1.4
Reset Addresses
On reset, the SADDR and SADEN registers are initialized to 00h, i.e. the given and broadcast
addresses are XXXX XXXXb (all don’t-care bits). This ensures that the serial port will reply to any
address, and so, that it is backwards compatible with the 80C51 microcontrollers that do not
support automatic address recognition.
21
4431E–8051–04/06
Table 9-1.
SADEN - Slave Address Mask Register (B9h)
7
6
5
4
3
2
1
0
2
1
0
Reset Value = 0000 0000b
Not bit addressable
Table 9-2.
SADDR - Slave Address Register (A9h)
7
6
5
4
3
Reset Value = 0000 0000b
Not bit addressable
22
AT/TS8xC54/8X2
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AT/TS8xC54/8X2
Table 9-3.
SCON Register
SCON - Serial Control Register (98h)
7
6
5
4
3
2
1
0
FE/SM0
SM1
SM2
REN
TB8
RB8
TI
RI
Bit
Bit
Number
Mnemonic
7
FE
Description
Framing Error bit (SMOD0=1)
Clear to reset the error state, not cleared by a valid stop bit.
Set by hardware when an invalid stop bit is detected.
SMOD0 must be set to enable access to the FE bit
SM0
Serial port Mode bit 0
Refer to SM1 for serial port mode selection.
SMOD0 must be cleared to enable access to the SM0 bit
6
SM1
Serial port Mode bit 1
SM0
SM1Mode Description
Baud Rate
0
0
1
1
Shift RegisterFXTAL/12 (/6 in X2 mode)
8-bit UARTVariable
9-bit UARTFXTAL/64 or FXTAL/32 (/32, /16 in X2 mode)
9-bit UARTVariable
0
1
0
1
0
1
2
3
5
SM2
Serial port Mode 2 bit / Multiprocessor Communication Enable bit
Clear to disable multiprocessor communication feature.
Set to enable multiprocessor communication feature in mode 2 and 3, and eventually mode
1. This bit should be cleared in mode 0.
4
REN
Reception Enable bit
Clear to disable serial reception.
Set to enable serial reception.
3
TB8
Transmitter Bit 8 / Ninth bit to transmit in modes 2 and 3.
2
RB8
Clear to transmit a logic 0 in the 9th bit.
Set to transmit a logic 1 in the 9th bit.
Receiver Bit 8 / Ninth bit received in modes 2 and 3
Cleared by hardware if 9th bit received is a logic 0.
Set by hardware if 9th bit received is a logic 1.
In mode 1, if SM2 = 0, RB8 is the received stop bit. In mode 0 RB8 is not used.
1
TI
Transmit Interrupt flag
Clear to acknowledge interrupt.
Set by hardware at the end of the 8th bit time in mode 0 or at the beginning of the stop bit in
the other
modes.
0
RI
Receive Interrupt flag
Clear to acknowledge interrupt.
Set by hardware at the end of the 8th bit time in mode 0, see Figure 9-2. and Figure 9-3. in
the other modes.
Reset Value = 0000 0000b
Bit addressable
23
4431E–8051–04/06
Table 9-4.
PCON Register
Table 9-5.
PCON - Power Control Register (87h)
7
6
5
4
3
2
1
0
SMOD1
SMOD0
-
POF
GF1
GF0
PD
IDL
Bit
Bit
Number
Mnemonic
7
SMOD1
Serial port Mode bit 1
Set to select double baud rate in mode 1, 2 or 3.
6
SMOD0
Serial port Mode bit 0
Clear to select SM0 bit in SCON register.
Set to to select FE bit in SCON register.
5
-
4
POF
Power-Off Flag
Clear to recognize next reset type.
Set by hardware when VCC rises from 0 to its nominal voltage. Can also be set by software.
3
GF1
General purpose Flag
Cleared by user for general purpose usage.
Set by user for general purpose usage.
2
GF0
General purpose Flag
Cleared by user for general purpose usage.
Set by user for general purpose usage.
1
PD
Power-Down mode bit
Cleared by hardware when reset occurs.
Set to enter power-down mode.
0
IDL
Idle mode bit
Clear by hardware when interrupt or reset occurs.
Set to enter idle mode.
Description
Reserved
The value read from this bit is indeterminate. Do not set this bit.
Reset Value = 00X1 0000b
Not bit addressable
Power-off flag reset value will be 1 only after a power on (cold reset). A warm reset doesn’t affect
the value of this bit.
24
AT/TS8xC54/8X2
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AT/TS8xC54/8X2
10. Interrupt System
The TS80C54/58X2 has a total of 7 interrupt vectors: two external interrupts (INT0 and INT1),
three timer interrupts (timers 0, 1 and 2) and the serial port interrupt. These interrupts are shown
in Figure 10-1.
Figure 10-1. Interrupt Control System
High priority
interrupt
IPH, IP
3
INT0
IE0
0
3
TF0
0
Interrupt
polling
sequence, decreasing from
high to low priority
3
INT1
IE1
0
3
TF1
0
RI
TI
3
TF2
EXF2
3
0
0
Individual Enable
Global Disable
Low priority
interrupt
Each of the interrupt sources can be individually enabled or disabled by setting or clearing a bit
in the Interrupt Enable register (See Table 10-2.). This register also contains a global disable bit,
which must be cleared to disable all interrupts at once.
Each interrupt source can also be individually programmed to one out of four priority levels by
setting or clearing a bit in the Interrupt Priority register (See Table 10-3.) and in the Interrupt Priority High register (See Table 10-4.). shows the bit values and priority levels associated with
each combination.
Table 10-1.
Priority Level Bit Values
IPH.x
IP.x
Interrupt Level Priority
0
0
0 (Lowest)
0
1
1
1
0
2
1
1
3 (Highest)
A low-priority interrupt can be interrupted by a high priority interrupt, but not by another low-priority interrupt. A high-priority interrupt can’t be interrupted by any other interrupt source.
25
4431E–8051–04/06
If two interrupt requests of different priority levels are received simultaneously, the request of
higher priority level is serviced. If interrupt requests of the same priority level 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.
Table 10-2.
IE Register
IE - Interrupt Enable Register (A8h)
7
6
5
4
3
2
1
0
EA
-
ET2
ES
ET1
EX1
ET0
EX0
Bit
Bit
Number
Mnemonic
Description
Enable All interrupt bit
Clear to disable all interrupts.
Set to enable all interrupts.
If EA=1, each interrupt source is individually enabled or disabled by setting or clearing its
own interrupt enable bit.
7
EA
6
-
5
ET2
Timer 2 overflow interrupt Enable bit
Clear to disable timer 2 overflow interrupt.
Set to enable timer 2 overflow interrupt.
4
ES
Serial port Enable bit
Clear to disable serial port interrupt.
Set to enable serial port interrupt.
3
ET1
Timer 1 overflow interrupt Enable bit
Clear to disable timer 1 overflow interrupt.
Set to enable timer 1 overflow interrupt.
2
EX1
External interrupt 1 Enable bit
Clear to disable external interrupt 1.
Set to enable external interrupt 1.
1
ET0
Timer 0 overflow interrupt Enable bit
Clear to disable timer 0 overflow interrupt.
Set to enable timer 0 overflow interrupt.
0
EX0
External interrupt 0 Enable bit
Clear to disable external interrupt 0.
Set to enable external interrupt 0.
Reserved
The value read from this bit is indeterminate. Do not set this bit.
Reset Value = 0X00 0000b
Bit addressable
26
AT/TS8xC54/8X2
4431E–8051–04/06
AT/TS8xC54/8X2
Table 10-3.
IP Register
IP - Interrupt Priority Register (B8h)
7
6
5
4
3
2
1
0
-
-
PT2
PS
PT1
PX1
PT0
PX0
Bit
Bit
Number
Mnemonic
7
-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
6
-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
5
PT2
Timer 2 overflow interrupt Priority bit
Refer to PT2H for priority level.
4
PS
Serial port Priority bit
Refer to PSH for priority level.
3
PT1
Timer 1 overflow interrupt Priority bit
Refer to PT1H for priority level.
2
PX1
External interrupt 1 Priority bit
Refer to PX1H for priority level.
1
PT0
Timer 0 overflow interrupt Priority bit
Refer to PT0H for priority level.
0
PX0
External interrupt 0 Priority bit
Refer to PX0H for priority level.
Description
Reset Value = XX00 0000b
Bit addressable
27
4431E–8051–04/06
Table 10-4.
IPH Register
IPH - Interrupt Priority High Register (B7h)
7
6
5
4
3
2
1
0
-
-
PT2H
PSH
PT1H
PX1H
PT0H
PX0H
Bit
Bit
Number
Mnemonic
7
-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
6
-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
5
4
3
2
1
0
Description
PT2H
Timer 2 overflow interrupt Priority High bit
PT2H PT2 Priority Level
0
0
Lowest
0
1
1
0
1
1
Highest
PSH
Serial port Priority High bit
PSH
PS
Priority Level
0
0
Lowest
0
1
1
0
1
1
Highest
PT1H
Timer 1 overflow interrupt Priority High bit
PT1H PT1 Priority Level
0
0
Lowest
0
1
1
0
1
1
Highest
PX1H
External interrupt 1 Priority High bit
PX1H PX1 Priority Level
0
0
Lowest
0
1
1
0
1
1
Highest
PT0H
Timer 0 overflow interrupt Priority High bit
PT0H PT0 Priority Level
0
0
Lowest
0
1
1
0
1
1
Highest
PX0H
External interrupt 0 Priority High bit
PX0H PX0 Priority Level
0
0
Lowest
0
1
1
0
1
1
Highest
Reset Value = XX00 0000b
Not bit addressable
28
AT/TS8xC54/8X2
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AT/TS8xC54/8X2
11. Idle mode
An instruction that sets PCON.0 causes that to be the last instruction executed before going into
the Idle mode. In the Idle mode, the internal clock signal is gated off to the CPU, but not to the
interrupt, Timer, and Serial Port functions. The CPU status is preserved in its entirely : the Stack
Pointer, Program Counter, Program Status Word, Accumulator and all other registers maintain
their data during Idle. The port pins hold the logical states they had at the time Idle was activated. ALE and PSEN hold at logic high levels.
There are two ways to terminate the Idle. Activation of any enabled interrupt will cause PCON.0
to be cleared by hardware, terminating the Idle mode. The interrupt will be serviced, and following RETI the next instruction to be executed will be the one following the instruction that put the
device into idle.
The flag bits GF0 and GF1 can be used to give an indication if an interrupt occured during normal operation or during an Idle. For example, an instruction that activates Idle can also set one
or both flag bits. When Idle is terminated by an interrupt, the interrupt service routine can examine the flag bits.
The other way of terminating the Idle mode is with a hardware reset. Since the clock oscillator is
still running, the hardware reset needs to be held active for only two machine cycles (24 oscillator periods) to complete the reset.
11.1
Power-Down Mode
To save maximum power, a power-down mode can be invoked by software (Refer to Table 9-4.,
PCON register).
In power-down mode, the oscillator is stopped and the instruction that invoked power-down
mode is the last instruction executed. The internal RAM and SFRs retain their value until the
power-down mode is terminated. VCC can be lowered to save further power. Either a hardware
reset or an external interrupt can cause an exit from power-down. To properly terminate powerdown, the reset or external interrupt should not be executed before VCC is restored to its normal
operating level and must be held active long enough for the oscillator to restart and stabilize.
Only external interrupts INT0 and INT1 are useful to exit from power-down. For that, interrupt
must be enabled and configured as level or edge sensitive interrupt input.
Holding the pin low restarts the oscillator but bringing the pin high completes the exit as detailed
in Figure 11-1. When both interrupts are enabled, the oscillator restarts as soon as one of the
two inputs is held low and power down exit will be completed when the first input will be
released. In this case the higher priority interrupt service routine is executed.
Once the interrupt is serviced, the next instruction to be executed after RETI will be the one following the instruction that put TS80C54/58X2 into power-down mode.
29
4431E–8051–04/06
Figure 11-1. Power-Down Exit Waveform
INT0
INT1
XTAL1
Active phase
Power-down phase
Oscillator restart phase
Active phase
Exit from power-down by reset redefines all the SFRs, exit from power-down by external interrupt does no affect the SFRs.
Exit from power-down by either reset or external interrupt does not affect the internal RAM
content.
NOTE: If idle mode is activated with power-down mode (IDL and PD bits set), the exit sequence
is unchanged, when execution is vectored to interrupt, PD and IDL bits are cleared and idle
mode is not entered.
Table 11-1.
The state of ports during idle and power-down modes
Mode
Program
Memory
ALE
PSEN
PORT0
PORT1
PORT2
PORT3
Idle
Internal
1
1
Port Data*
Port Data
Port Data
Port Data
Idle
External
1
1
Floating
Port Data
Address
Port Data
Power Down
Internal
0
0
Port Data*
Port Data
Port Data
Port Data
Power Down
External
0
0
Floating
Port Data
Port Data
Port Data
* Port 0 can force a "zero" level. A "one" Level will leave port floating.
30
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AT/TS8xC54/8X2
12. Hardware Watchdog Timer
The WDT is intended as a recovery method in situations where the CPU may be subjected to
software upset. The WDT consists of a 14-bit counter and the WatchDog Timer ReSeT
(WDTRST) SFR. The WDT is by default disabled from exiting reset. To enable the WDT, user
must write 01EH and 0E1H in sequence to the WDTRST, SFR location 0A6H. When WDT is
enabled, it will increment every machine cycle while the oscillator is running and there is no way
to disable the WDT except through reset (either hardware reset or WDT overflow reset). When
WDT overflows, it will drive an output RESET HIGH pulse at the RST-pin.
12.1
Using the WDT
To enable the WDT, user must write 01EH and 0E1H in sequence to the WDTRST, SFR location 0A6H. When WDT is enabled, the user needs to service it by writing to 01EH and 0E1H to
WDTRST to avoid WDT overflow. The 14-bit counter overflows when it reaches 16383 (3FFFH)
and this will reset the device. When WDT is enabled, it will increment every machine cycle while
the oscillator is running. This means the user must reset the WDT at least every 16383 machine
cycle. To reset the WDT the user must write 01EH and 0E1H to WDTRST. WDTRST is a write
only register. The WDT counter cannot be read or written. When WDT overflows, it will generate
an output RESET pulse at the RST-pin. The RESET pulse duration is 96 x TOSC , where TOSC =
1/FOSC . To make the best use of the WDT, it should be serviced in those sections of code that
will periodically be executed within the time required to prevent a WDT reset.
To have a more powerful WDT, a 27 counter has been added to extend the Time-out capability,
ranking from 16ms to 2s @ FOSC = 12MHz. To manage this feature, refer to WDTPRG register
description, Table 12-2. (SFR0A7h).
Table 12-1.
Reset value
WDTRST Register
WDTRST Address (0A6h)
7
6
5
4
3
2
1
X
X
X
X
X
X
X
Write only, this SFR is used to reset/enable the WDT by writing 01EH then 0E1H in sequence.
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4431E–8051–04/06
Table 12-2.
WDTPRG Register
WDTPRG Address (0A7h)
7
6
5
4
3
2
1
0
T4
T3
T2
T1
T0
S2
S1
S0
Bit
Bit
Number
Mnemonic
7
T4
6
T3
5
T2
4
T1
3
T0
2
S2
WDT Time-out select bit 2
1
S1
WDT Time-out select bit 1
0
S0
WDT Time-out select bit 0
Description
Reserved
Do not try to set or clear this bit.
S2S1
0
0
0
0
1
1
1
1
S0
0
0
1
1
0
0
1
1
Selected Time-out
0
(214 - 1) machine cycles, 16.3 ms @ 12 MHz
1
(215 - 1) machine cycles, 32.7 ms @ 12 MHz
0
(216 - 1) machine cycles, 65.5 ms @ 12 MHz
1
(217 - 1) machine cycles, 131 ms @ 12 MHz
0
(218 - 1) machine cycles, 262 ms @ 12 MHz
1
(219 - 1) machine cycles, 542 ms @ 12 MHz
0
(220 - 1) machine cycles, 1.05 s @ 12 MHz
1
(221 - 1) machine cycles, 2.09 s @ 12 MHz
Reset value XXXX X000
12.1.1
WDT during Power Down and Idle
In Power Down mode the oscillator stops, which means the WDT also stops. While in Power
Down mode the user does not need to service the WDT. There are 2 methods of exiting Power
Down mode: by a hardware reset or via a level activated external interrupt which is enabled prior
to entering Power Down mode. When Power Down is exited with hardware reset, servicing the
WDT should occur as it normally should whenever the TS80C54/58X2 is reset. Exiting Power
Down with an interrupt is significantly different. The interrupt is held low long enough for the
oscillator to stabilize. When the interrupt is brought high, the interrupt is serviced. To prevent the
WDT from resetting the device while the interrupt pin is held low, the WDT is not started until the
interrupt is pulled high. It is suggested that the WDT be reset during the interrupt service routine.
To ensure that the WDT does not overflow within a few states of exiting of powerdown, it is best
to reset the WDT just before entering powerdown.
In the Idle mode, the oscillator continues to run. To prevent the WDT from resetting the
TS80C54/58X2 while in Idle mode, the user should always set up a timer that will periodically
exit Idle, service the WDT, and re-enter Idle mode.
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AT/TS8xC54/8X2
13. ONCETM Mode (ON Chip Emulation)
The ONCE mode facilitates testing and debugging of systems using TS80C54/58X2 without
removing the circuit from the board. The ONCE mode is invoked by driving certain pins of the
TS80C54/58X2; the following sequence must be exercised:
• Pull ALE low while the device is in reset (RST high) and PSEN is high.
• Hold ALE low as RST is deactivated.
While the TS80C54/58X2 is in ONCE mode, an emulator or test CPU can be used to drive the
circuit Table 13-1 shows the status of the port pins during ONCE mode.
Normal operation is restored when normal reset is applied.
Table 13-1.
External Pin Status during ONCE Mode
ALE
PSEN
Port 0
Port 1
Port 2
Port 3
XTAL1/2
Weak pull-up
Weak pull-up
Float
Weak pull-up
Weak pull-up
Weak pull-up
Active
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4431E–8051–04/06
14. Power-Off Flag
The power-off flag allows the user to distinguish between a “cold start” reset and a “warm start”
reset.
A cold start reset is the one induced by VCC switch-on. A warm start reset occurs while VCC is still
applied to the device and could be generated for example by an exit from power-down.
The power-off flag (POF) is located in PCON register (See Table 14-1.). POF is set by hardware
when VCC rises from 0 to its nominal voltage. The POF can be set or cleared by software allowing the user to determine the type of reset.
The POF value is only relevant with a Vcc range from 4.5V to 5.5V. For lower Vcc value, reading
POF bit will return indeterminate value.
Table 14-1.
PCON Register
PCON - Power Control Register (87h)
7
6
5
4
3
2
1
0
SMOD1
SMOD0
-
POF
GF1
GF0
PD
IDL
Bit
Bit
Number
Mnemonic
7
SMOD1
Serial port Mode bit 1
Set to select double baud rate in mode 1, 2 or 3.
6
SMOD0
Serial port Mode bit 0
Clear to select SM0 bit in SCON register.
Set to to select FE bit in SCON register.
5
-
4
POF
Power-Off Flag
Clear to recognize next reset type.
Set by hardware when VCC rises from 0 to its nominal voltage. Can also be set by software.
3
GF1
General purpose Flag
Cleared by user for general purpose usage.
Set by user for general purpose usage.
2
GF0
General purpose Flag
Cleared by user for general purpose usage.
Set by user for general purpose usage.
1
PD
Power-Down mode bit
Cleared by hardware when reset occurs.
Set to enter power-down mode.
0
IDL
Idle mode bit
Clear by hardware when interrupt or reset occurs.
Set to enter idle mode.
Description
Reserved
The value read from this bit is indeterminate. Do not set this bit.
Reset Value = 00X1 0000b
Not bit addressable
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AT/TS8xC54/8X2
15. Reduced EMI Mode
The ALE signal is used to demultiplex address and data buses on port 0 when used with external program or data memory. Nevertheless, during internal code execution, ALE signal is still
generated. In order to reduce EMI, ALE signal can be disabled by setting AO bit.
The AO bit is located in AUXR register at bit location 0. As soon as AO is set, ALE is no longer
output but remains active during MOVX and MOVC instructions and external fetches. During
ALE disabling, ALE pin is weakly pulled high.
Table 15-1.
AUXR Register
AUXR - Auxiliary Register (8Eh)
7
6
5
4
3
2
1
0
-
-
-
-
-
-
RESERVED
AO
Bit
Bit
Number
Mnemonic
7
-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
6
-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
5
-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
4
-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
3
-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
2
-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
1
-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
0
AO
Description
ALE Output bit
Clear to restore ALE operation during internal fetches.
Set to disable ALE operation during internal fetches.
Reset Value = XXXX XXX0b
Not bit addressable
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4431E–8051–04/06
16. TS80C54/58X2 ROM
16.1
ROM Structure
The TS80C54/58X2 ROM memory is in three different arrays:
• the code array:16/32 Kbytes.
• the encryption array:64 bytes.
• the signature array:4 bytes.
16.2
ROM Lock System
The program Lock system, when programmed, protects the on-chip program against software
piracy.
16.2.1
Encryption Array
Within the ROM array are 64 bytes of encryption array that are initially unprogrammed (all FF’s).
Every time a byte is addressed during program verify, 6 address lines are used to select a byte
of the encryption array. This byte is then exclusive-NOR’ed (XNOR) with the code byte, creating
an encrypted verify byte. The algorithm, with the encryption array in the unprogrammed state,
will return the code in its original, unmodified form.
When using the encryption array, one important factor needs to be considered. If a byte has the
value FFh, verifying the byte will produce the encryption byte value. If a large block (>64 bytes)
of code is left unprogrammed, a verification routine will display the content of the encryption
array. For this reason all the unused code bytes should be programmed with random values.
This will ensure program protection.
16.2.2
Program Lock Bits
The lock bits when programmed according to Table 16-1. will provide different level of protection
for the on-chip code and data.
Table 16-1.
Program Lock bits
Program Lock Bits
Security
level
LB1
LB2
LB3
1
U
U
U
No program lock features enabled. Code verify will still be encrypted by
the encryption array if programmed. MOVC instruction executed from
external program memory returns non encrypted data.
2
P
U
U
MOVC instruction executed from external program memory are disabled
from fetching code bytes from internal memory, EA is sampled and
latched on reset.
Protection Description
U: unprogrammed
P: programmed
16.2.3
Signature bytes
The TS80C54/58X2 contains 4 factory programmed signatures bytes. To read these bytes, perform the process described in section 8.3.
16.2.4
Verify Algorithm
Refer to 17.3.4
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AT/TS8xC54/8X2
4431E–8051–04/06
AT/TS8xC54/8X2
17. TS87C54/58X2 EPROM
17.1
EPROM Structure
The TS87C54/58X2 EPROM is divided in two different arrays:
• the code array:16/32 Kbytes.
• the encryption array:64 bytes.
• In addition a third non programmable array is implemented:
• the signature array: 4 bytes.
17.2
EPROM Lock System
The program Lock system, when programmed, protects the on-chip program against software
piracy.
17.2.1
Encryption Array
Within the EPROM array are 64 bytes of encryption array that are initially unprogrammed (all
FF’s). Every time a byte is addressed during program verify, 6 address lines are used to select a
byte of the encryption array. This byte is then exclusive-NOR’ed (XNOR) with the code byte, creating an encrypted verify byte. The algorithm, with the encryption array in the unprogrammed
state, will return the code in its original, unmodified form.
When using the encryption array, one important factor needs to be considered. If a byte has the
value FFh, verifying the byte will produce the encryption byte value. If a large block (>64 bytes)
of code is left unprogrammed, a verification routine will display the content of the encryption
array. For this reason all the unused code bytes should be programmed with random values.
This will ensure program protection.
17.2.2
Program Lock Bits
The three lock bits, when programmed according to Table 17-1., will provide different level of
protection for the on-chip code and data.
Table 17-1.
Program Lock bits
Program Lock Bits
Security
level
LB1
LB2
LB3
Protection Description
1
U
U
U
No program lock features enabled. Code verify will still be encrypted by
the encryption array if programmed. MOVC instruction executed from
external program memory returns non encrypted data.
2
P
U
U
MOVC instruction executed from external program memory are
disabled from fetching code bytes from internal memory, EA is sampled
and latched on reset, and further programming of the EPROM is
disabled.
3
U
P
U
Same as 2, also verify is disabled.
4
U
U
P
Same as 3, also external execution is disabled.
U: unprogrammed,
P: programmed
WARNING: Security level 2 and 3 should only be programmed after EPROM and Core
verification.
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4431E–8051–04/06
17.2.3
17.3
17.3.1
Signature bytes
The TS87C54/58X2 contains 4 factory programmed signatures bytes. To read these bytes, perform the process described in section 8.3.
EPROM Programming
Set-up modes
In order to program and verify the EPROM or to read the signature bytes, the TS87C54/58X2 is
placed in specific set-up modes (See Figure 17-1.).
Control and program signals must be held at the levels indicated in Table 17-2.
17.3.2
Definition of terms
Address Lines:P1.0-P1.7, P2.0-P2.5, P3.4 respectively
TS87C54X2, P3.4 (A14) for TS87C58X2).
for A0-A14
(P2.5
(A13) for
Data Lines:P0.0-P0.7 for D0-D7
Control Signals:RST, PSEN, P2.6, P2.7, P3.3, P3.6, P3.7.
Program Signals:ALE/PROG, EA/VPP.
Table 17-2.
EPROM Set-Up Modes
Mode
Program Code data
Verify Code data
Program Encryption
Array Address 0-3Fh
Read Signature Bytes
Program Lock bit 1
Program Lock bit 2
Program Lock bit 3
38
RST
PSEN
1
0
1
0
1
0
1
0
1
ALE/PR
OG
EA/VPP
P2.6
P2.7
P3.3
P3.6
P3.7
12.75V
0
1
1
1
1
1
0
0
1
1
12.75V
0
1
0
1
1
0
0
0
0
0
12.75V
1
1
1
1
1
1
0
12.75V
1
1
1
0
0
1
0
12.75V
1
0
1
1
0
1
1
1
AT/TS8xC54/8X2
4431E–8051–04/06
AT/TS8xC54/8X2
Figure 17-1. Set-Up Modes Configuration
+5V
PROGRAM
SIGNALS*
EA/VPP
VCC
ALE/PROG
CON TRO L
SIGNALS*
RST
PSEN
P2.6
P2.7
P3.3
P3.6
P3.7
4 to 6 MHz
XTAL1
P0.0-P0.7
D0-D7
P1.0-P1.7
A0-A7
A8-A14
P2.0-P2.5,
VSS
GND
* See Table 31. for proper value on these inputs
17.3.3
Programming Algorithm
The Improved Quick Pulse algorithm is based on the Quick Pulse algorithm and decreases the
number of pulses applied during byte programming from 25 to 1.
To program the TS80C54/58X2 the following sequence must be exercised:
• Step 1: Activate the combination of control signals.
• Step 2: Input the valid address on the address lines.
• Step 3: Input the appropriate data on the data lines.
• Step 4: Raise EA/VPP from VCC to VPP (typical 12.75V).
• Step 5: Pulse ALE/PROG once.
• Step 6: Lower EA/VPP from VPP to VCC
Repeat step 2 through 6 changing the address and data for the entire array or until the end of
the object file is reached (See Figure 17-2.).
17.3.4
Verify algorithm
Code array verify must be done after each byte or block of bytes is programmed. In either case,
a complete verify of th e p rog ra mmed array will ensure reliable programming of the
TS87C54/58X2.
P 2.7 is used to enable data output.
To verify the TS87C54/58X2 code the following sequence must be exercised:
• Step 1: Activate the combination of program and control signals.
• Step 2: Input the valid address on the address lines.
• Step 3: Read data on the data lines.
Repeat step 2 through 3 changing the address for the entire array verification (See Figure 17-2.)
39
4431E–8051–04/06
The encryption array cannot be directly verified. Verification of the encryption array is done by
observing that the code array is well encrypted.
Figure 17-2. Programming and Verification Signal’s Waveform
Programming Cycle
Read/Verify Cycle
A0-A12
Data In
D0-D7
100
Data Out
μs
ALE/PROG
EA/VPP
12.75V
5V
0V
C ont rol
signals
17.4
EPROM Erasure (Windowed Packages Only)
Erasing the EPROM erases the code array, the encryption array and the lock bits returning the
parts to full functionality.
Erasure leaves all the EPROM cells in a 1’s state (FF).
17.4.1
Erasure Characteristics
The recommended erasure procedure is exposure to ultraviolet light (at 2537 Å) to an integrated
dose at least 15 W-sec/cm2. Exposing the EPROM to an ultraviolet lamp of 12,000 μW/cm2 rating for 30 minutes, at a distance of about 25 mm, should be sufficient. An exposure of 1 hour is
recommended with most of standard erasers.
Erasure of the EPROM begins to occur when the chip is exposed to light with wavelength
shorter than approximately 4,000 Å. Since sunlight and fluorescent lighting have wavelengths in
this range, exposure to these light sources over an extended time (about 1 week in sunlight, or 3
years in room-level fluorescent lighting) could cause inadvertent erasure. If an application subjects the device to this type of exposure, it is suggested that an opaque label be placed over the
window.
18. Signature Bytes
The TS87C54/58X2 has four signature bytes in location 30h, 31h, 60h and 61h. To read these
bytes follow the procedure for EPROM verify but activate the control lines provided in Table 31.
for Read Signature Bytes. Table 18-1. shows the content of the signature byte for the
TS80C54/58X2.
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AT/TS8xC54/8X2
Table 18-1.
Signature Bytes Content
Location
Contents
Comment
30h
58h
Manufacturer Code: Atmel Wireless &
Microcontrollers
31h
57h
Family Code: C51 X2
60h
37h
Product name: TS80C58X2
60h
B7h
Product name: TS87C58X2
60h
3Bh
Product name: TS80C54X2
60h
BBh
Product name: TS87C54X2
61h
FFh
Product revision number
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4431E–8051–04/06
19. Electrical Characteristics
19.1
Absolute Maximum Ratings
(1)
Ambiant Temperature Under Bias:
C = commercial0°C to 70°C
I = industrial -40°C to 85°C
Storage Temperature-65°C to + 150°C
Voltage on VCC to VSS-0.5 V to + 7 V
Voltage on VPP to VSS-0.5 V to + 13 V
Voltage on Any Pin to VSS-0.5 V to VCC + 0.5 V
Power Dissipation1 W(2)
1. Stresses at or above those listed under “ Absolute Maximum Ratings” may cause permanent damage to 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 may affect device reliability.
2. This value is based on the maximum allowable die temperature and the thermal resistance of the package.
19.2
Power consumption measurement
Since the introduction of the first C51 devices, every manufacturer made operating Icc measurements under reset, which made sense for the designs were the CPU was running under reset. In
Atmel new devices, the CPU is no more active during reset, so the power consumption is very
low but is not really representative of what will happen in the customer system. That’s why, while
keeping measurements under Reset, Atmel presents a new way to measure the operating Icc:
Using an internal test ROM, the following code is executed:
Label:
SJMP Label (80 FE)
Ports 1, 2, 3 are disconnected, Port 0 is tied to FFh, EA = Vcc, RST = Vss, XTAL2 is not connected and XTAL1 is driven by the clock.
This is much more representative of the real operating Icc.
19.3
DC Parameters for Standard Voltage
TA = 0°C to +70°C; VSS = 0 V; VCC = 5 V ± 10%; F = 0 to 40 MHz.
TA = -40°C to +85°C; VSS = 0 V; VCC = 5 V ± 10%; F = 0 to 40 MHz.
Table 19-1.
Symbol
Parameter
Min
VIL
Input Low Voltage
VIH
Input High Voltage except XTAL1, RST
VIH1
Input High Voltage, XTAL1, RST
VOL
42
DC Parameters in Standard Voltage
Output Low Voltage, ports 1, 2, 3
(6)
Typ
Max
Unit
Test Conditions
-0.5
0.2 VCC - 0.1
V
0.2 VCC + 0.9
VCC + 0.5
V
0.7 VCC
VCC + 0.5
V
0.3
V
IOL = 100 μA(4)
0.45
V
IOL = 1.6 mA(4)
1.0
V
IOL = 3.5 mA(4)
AT/TS8xC54/8X2
4431E–8051–04/06
AT/TS8xC54/8X2
Symbol
VOL1
VOL2
VOH
VOH1
VOH2
RRST
Parameter
Output Low Voltage, port 0
Min
Typ
(6)
Output Low Voltage, ALE, PSEN
Output High Voltage, ports 1, 2, 3
Output High Voltage, port 0
Output High Voltage,ALE, PSEN
RST Pulldown Resistor
Max
Unit
0.3
V
IOL = 200 μA(4)
0.45
V
IOL = 3.2 mA(4)
1.0
V
IOL = 7.0 mA(4)
0.3
V
IOL = 100 μA(4)
0.45
V
IOL = 1.6 mA(4)
1.0
V
IOL = 3.5 mA(4)
VCC - 0.3
V
VCC - 0.7
V
VCC - 1.5
V
VCC - 0.3
V
VCC - 0.7
V
VCC - 1.5
V
VCC - 0.3
V
VCC - 0.7
V
VCC - 1.5
V
50
90 (5)
Test Conditions
200
kΩ
IOH = -10 μA
IOH = -30 μA
IOH = -60 μA
V CC = 5 V ± 10%
IOH = -200 μA
IOH = -3.2 mA
IOH = -7.0 mA
VCC = 5 V ± 10%
IOH = -100 μA
IOH = -1.6 mA
IOH = -3.5 mA
VCC = 5 V ± 10%
IIL
Logical 0 Input Current ports 1, 2 and 3
-50
μA
Vin = 0.45 V
ILI
Input Leakage Current
±10
μA
0.45 V < Vin < VCC
ITL
Logical 1 to 0 Transition Current, ports 1, 2, 3
-650
μA
Vin = 2.0 V
CIO
Capacitance of I/O Buffer
10
pF
Fc = 1 MHz
TA = 25°C
IPD
Power Down Current
50
μA
2.0 V < VCC < 5.5 V(3)
ICC
under
RESET
ICC
operating
Power Supply Current Maximum values, X1
mode: (7)
20 (5)
1 + 0.4 Freq
(MHz)
@12MHz 5.8
@16MHz 7.4
Power Supply Current Maximum values, X1
mode: (7)
3 + 0.6 Freq
(MHz)
@12MHz 10.2
mA
mA
V CC = 5.5 V(1)
V CC = 5.5 V(8)
@16MHz 12.6
ICC
idle
Power Supply Current Maximum values, X1
mode: (7)
0.25+0.3 Freq
(MHz)
@12MHz 3.9
mA
V CC = 5.5 V(2)
@16MHz 5.1
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4431E–8051–04/06
19.4
DC Parameters for Low Voltage
TA = 0°C to +70°C; VSS = 0 V; VCC = 2.7 V to 5.5 V ± 10%; F = 0 to 30 MHz.
TA = -40°C to +85°C; VSS = 0 V; VCC = 2.7 V to 5.5 V ± 10%; F = 0 to 30 MHz.
Table 19-2.
Symbol
DC Parameters for Low Voltage
Parameter
Min
VIL
Input Low Voltage
VIH
Input High Voltage except XTAL1, RST
VIH1
Input High Voltage, XTAL1, RST
Typ
Max
Unit
-0.5
0.2 VCC - 0.1
V
0.2 VCC + 0.9
VCC + 0.5
V
0.7 VCC
VCC + 0.5
V
0.45
V
IOL = 0.8 mA(4)
0.45
V
IOL = 1.6 mA(4)
(6)
VOL
Output Low Voltage, ports 1, 2, 3
VOL1
Output Low Voltage, port 0, ALE, PSEN (6)
Test Conditions
VOH
Output High Voltage, ports 1, 2, 3
0.9 VCC
V
IOH = -10 μA
VOH1
Output High Voltage, port 0, ALE, PSEN
0.9 VCC
V
IOH = -40 μA
IIL
Logical 0 Input Current ports 1, 2 and 3
-50
μA
Vin = 0.45 V
ILI
Input Leakage Current
±10
μA
0.45 V < Vin < VCC
ITL
Logical 1 to 0 Transition Current, ports 1, 2, 3
-650
μA
Vin = 2.0 V
200
kΩ
10
pF
RRST
RST Pulldown Resistor
CIO
Capacitance of I/O Buffer
IPD
Power Down Current
ICC
under
RESET
ICC
operating
Power Supply Current Maximum values, X1
mode: (7)
50
90 (5)
20 (5)
50
(5)
30
10
1 + 0.2 Freq
(MHz)
@12MHz 3.4
idle
mA
VCC = 2.0 V to 5.5 V(3)
VCC = 2.0 V to 3.3 V(3)
VCC = 3.3 V(1)
@16MHz 4.2
Power Supply Current Maximum values, X1
mode: (7)
1 + 0.3 Freq
(MHz)
@12MHz 4.6
@16MHz 5.8
ICC
μA
Fc = 1 MHz
TA = 25°C
Power Supply Current Maximum values, X1
mode: (7)
mA
VCC = 3.3 V(8)
0.15 Freq (MHz)
+ 0.2
@12MHz 2
mA
VCC = 3.3 V(2)
@16MHz 2.6
1. ICC under reset is measured with all output pins disconnected; XTAL1 driven with TCLCH, TCHCL = 5 ns (see Figure
19-5.), VIL = V SS + 0.5 V,
VIH = V CC - 0.5V; XTAL2 N.C.; EA = RST = Port 0 = VCC. ICC would be slightly higher if a crystal oscillator used..
2. Idle ICC is measured with all output pins disconnected; XTAL1 driven with TCLCH, TCHCL = 5 ns, V IL = VSS + 0.5 V,
VIH = V CC - 0.5 V; XTAL2 N.C; Port 0 = VCC; EA = RST = VSS (see Figure 19-3.).
3. Power Down I CC is measured with all output pins disconnected; EA = VSS, PORT 0 = VCC; XTAL2 NC.; RST = VSS
(see Figure 19-4.).
4. Capacitance loading on Ports 0 and 2 may cause spurious noise pulses to be superimposed on the VOLs of ALE
and Ports 1 and 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 cases (capacitive loading 100pF), the noise
pulse on the ALE line may exceed 0.45V with maxi VOL peak 0.6V. A Schmitt Trigger use is not necessary.
44
AT/TS8xC54/8X2
4431E–8051–04/06
AT/TS8xC54/8X2
5. Typicals are based on a limited number of samples and are not guaranteed. The values listed are at room temperature and 5V.
6. Under steady state (non-transient) conditions, I OL must be externally limited as follows:
Maximum IOL per port pin: 10 mA
Maximum IOL per 8-bit port:
Port 0: 26 mA
Ports 1, 2 and 3: 15 mA
Maximum total IOL for all output pins: 71 mA
If I OL exceeds the test condition, VOL may exceed the related specification. Pins are not guaranteed to sink current
greater than the listed test conditions.
7. For other values, please contact your sales office.
8. Operating I CC is measured with all output pins disconnected; XTAL1 driven with TCLCH, TCHCL = 5 ns (see Figure
19-5.), VIL = V SS + 0.5 V,
VIH = V CC - 0.5V; XTAL2 N.C.; EA = Port 0 = VCC; RST = VSS. The internal ROM runs the code 80 FE (label: SJMP
label). ICC would be slightly higher if a crystal oscillator is used. Measurements are made with OTP products when
possible, which is the worst case.
Figure 19-1. ICC Test Condition, under reset
VCC
ICC
VCC
P0
VCC
RST
(NC)
C LOC K
SIGNAL
VCC
EA
XTAL2
XTAL1
VSS
All other pins are disconnected.
Figure 19-2. Operating ICC Test Condition
VCC
ICC
VCC
VCC
P0
Reset = Vss after a high pulse
during at least 24 clock cycles
RST
(NC)
C LOC K
SIGNAL
EA
XTAL2
XTAL1
VSS
All other pins are disconnected.
45
4431E–8051–04/06
Figure 19-3. ICC Test Condition, Idle Mode
VCC
ICC
VCC
VCC
P0
Reset = Vss after a high pulse
during at least 24 clock cycles
RST
(NC)
CLOCK
SIGNAL
EA
XTAL2
XTAL1
All other pins are disconnected.
VSS
Figure 19-4. ICC Test Condition, Power-Down Mode
VCC
ICC
VCC
VCC
P0
Reset = Vss after a high pulse
during at least 24 clock cycles
RST
(NC)
EA
XTAL2
XTAL1
VSS
All other pins are disconnected.
Figure 19-5. Clock Signal Waveform for ICC Tests in Active and Idle Modes
VCC-0.5V
0.45V
TCLCH
TCHCL
TCLCH = TCHCL = 5ns.
46
0.7VCC
0.2VCC-0.1
AT/TS8xC54/8X2
4431E–8051–04/06
AT/TS8xC54/8X2
19.5
19.5.1
AC Parameters
Explanation of the AC Symbols
Each timing symbol has 5 characters. The first character is always a “T” (stands for time). The
other characters, depending on their positions, stand for the name of a signal or the logical status of that signal. The following is a list of all the characters and what they stand for.
Example:TAVLL = Time for Address Valid to ALE Low.
TLLPL = Time for ALE Low to PSEN Low.
TA = 0 to +70°C (commercial temperature range); VSS = 0 V; VCC = 5 V ± 10%; -M and -V ranges.
TA = -40°C to +85°C (industrial temperature range); VSS = 0 V; VCC = 5 V ± 10%; -M and -V
ranges.
TA = 0 to +70°C (commercial temperature range); VSS = 0 V; 2.7 V < VCC < 5.5 V; -L range.
TA = -40°C to +85°C (industrial temperature range); V SS = 0 V; 2.7 V < VCC < 5.5 V; -L range.
Table 19-3. gives the maximum applicable load capacitance for Port 0, Port 1, 2 and 3, and ALE
and PSEN signals. Timings will be guaranteed if these capacitances are respected. Higher
capacitance values can be used, but timings will then be degraded.
Table 19-3.
Load Capacitance versus speed range, in pF
-M
-V
-L
Port 0
100
50
100
Port 1, 2, 3
80
50
80
ALE / PSEN
100
30
100
Table 19-5., Table 19-8. and Table 19-11. give the description of each AC symbols.
Table 19-6., Table 19-9. and Table 19-12. give for each range the AC parameter.
Table 19-7., Table 19-10. and Table 19-13. give the frequency derating formula of the AC
parameter. To calculate each AC symbols, take the x value corresponding to the speed grade
you need (-M, -V or -L) and replace this value in the formula. Values of the frequency must be
limited to the corresponding speed grade:
Table 19-4.
Max frequency for derating formula regarding the speed grade
-M X1 mode
-M X2 mode
-V X1 mode
-V X2 mode
-L X1 mode
-L X2 mode
Freq (MHz)
40
20
40
30
30
20
T (ns)
25
50
25
33.3
33.3
50
Example:
TLLIV in X2 mode for a -V part at 20 MHz (T = 1/20E6 = 50 ns):
x= 22 (Table 19-7.)
T= 50ns
TLLIV= 2T - x = 2 x 50 - 22 = 78ns
47
4431E–8051–04/06
19.5.2
External Program Memory Characteristics
Table 19-5.
Symbol Description
Symbol
Parameter
T
Table 19-6.
Speed
ALE pulse width
TAVLL
Address Valid to ALE
TLLAX
Address Hold After ALE
TLLIV
ALE to Valid Instruction In
TLLPL
ALE to PSEN
TPLPH
PSEN Pulse Width
TPLIV
PSEN to Valid Instruction In
TPXIX
Input Instruction Hold After PSEN
TPXIZ
Input Instruction FloatAfter PSEN
TPXAV
PSEN to Address Valid
TAVIV
Address to Valid Instruction In
TPLAZ
PSEN Low to Address Float
AC Parameters for Fix Clock
-V
-V
-L
X2 mode
standard mode 40
MHz
X2 mode
-L
20 MHz
standard mode
40 MHz equiv.
30 MHz
30 MHz
40 MHz
60 MHz equiv.
Min
Min
T
25
33
25
50
33
ns
TLHLL
40
25
42
35
52
ns
TAVLL
10
4
12
5
13
ns
TLLAX
10
4
12
5
13
ns
70
Max
Min
45
Max
Min
78
Max
Min
Units
Symbol
TLLIV
65
Max
98
ns
TLLPL
15
9
17
10
18
ns
TPLPH
55
35
60
50
75
ns
TPLIV
TPXIX
48
TLHLL
-M
Max
Oscillator clock period
35
0
25
0
50
0
30
0
55
0
ns
ns
TPXIZ
18
12
20
10
18
ns
TAVIV
85
53
95
80
122
ns
TPLAZ
10
10
10
10
10
ns
AT/TS8xC54/8X2
4431E–8051–04/06
AT/TS8xC54/8X2
Table 19-7.
19.5.3
AC Parameters for a Variable Clock: derating formula
Symbol
Type
Standard
Clock
X2 Clock
-M
-V
-L
Units
TLHLL
Min
2T-x
T-x
10
8
15
ns
TAVLL
Min
T-x
0.5 T - x
15
13
20
ns
TLLAX
Min
T-x
0.5 T - x
15
13
20
ns
TLLIV
Max
4T-x
2T-x
30
22
35
ns
TLLPL
Min
T-x
0.5 T - x
10
8
15
ns
TPLPH
Min
3T-x
1.5 T - x
20
15
25
ns
TPLIV
Max
3T-x
1.5 T - x
40
25
45
ns
TPXIX
Min
x
x
0
0
0
ns
TPXIZ
Max
T-x
0.5 T - x
7
5
15
ns
TAVIV
Max
5T-x
2.5 T - x
40
30
45
ns
TPLAZ
Max
x
x
10
10
10
ns
External Program Memory Read Cycle
Figure 19-6. External Program Memory Read Cycle
12 TCLCL
TLHLL
TLLIV
ALE
TLLPL
TPLPH
PSEN
TLLAX
TAVLL
PORT 0
INSTR IN
TPLIV
TPLAZ
A0-A7
TPXAV
TPXIZ
TPXIX
INSTR IN
A0-A7
INSTR IN
TAVIV
PORT 2
ADDRESS
OR SFR-P2
ADDRESS A8-A15
ADDRESS A8-A15
49
4431E–8051–04/06
19.5.4
External Data Memory Characteristics
Table 19-8. Symbol Description
Symbol
Parameter
TRLRH
RD Pulse Width
TWLWH
WR Pulse Width
TRLDV
RD to Valid Data In
TRHDX
Data Hold After RD
TRHDZ
Data Float After RD
TLLDV
ALE to Valid Data In
TAVDV
Address to Valid Data In
TLLWL
ALE to WR or RD
TAVWL
Address to WR or RD
TQVWX
Data Valid to WR Transition
TQVWH
Data set-up to WR High
TWHQX
Data Hold After WR
TRLAZ
RD Low to Address Float
TWHLH
RD or WR High to ALE high
Table 19-9.
AC Parameters for a Fix Clock
-V
X2 mode
Speed
-M
30 MHz
40 MHz
60 MHz equiv.
20 MHz
30 MHz
40 MHz equiv.
85
135
125
175
ns
TWLWH
130
85
135
125
175
ns
0
Min
60
0
Max
Min
102
0
Max
Units
130
Min
95
0
Max
137
0
ns
ns
TRHDZ
30
18
35
25
42
ns
TLLDV
160
98
165
155
222
ns
TAVDV
165
100
175
160
235
ns
130
ns
TLLWL
50
TAVWL
75
47
80
70
103
ns
TQVWX
10
7
15
5
13
ns
TQVWH
160
107
165
155
213
ns
TWHQX
15
9
17
10
18
ns
TWHLH
100
30
0
TRLAZ
50
standard mode 40
MHz
TRLRH
100
Max
-L
standard mode
Min
TRHDX
Min
-L
X2 mode
Symbol
TRLDV
Max
-V
10
40
70
55
0
7
27
95
45
0
15
35
105
70
0
5
45
13
0
ns
53
ns
AT/TS8xC54/8X2
4431E–8051–04/06
AT/TS8xC54/8X2
Table 19-10. AC Parameters for a Variable Clock: derating formula
19.5.5
Symbol
Type
Standard
Clock
X2 Clock
-M
-V
-L
Units
TRLRH
Min
6T-x
3T-x
20
15
25
ns
TWLWH
Min
6T-x
3T-x
20
15
25
ns
TRLDV
Max
5T-x
2.5 T - x
25
23
30
ns
TRHDX
Min
x
x
0
0
0
ns
TRHDZ
Max
2T-x
T-x
20
15
25
ns
TLLDV
Max
8T-x
4T -x
40
35
45
ns
TAVDV
Max
9T-x
4.5 T - x
60
50
65
ns
TLLWL
Min
3T-x
1.5 T - x
25
20
30
ns
TLLWL
Max
3T+x
1.5 T + x
25
20
30
ns
TAVWL
Min
4T-x
2T-x
25
20
30
ns
TQVWX
Min
T-x
0.5 T - x
15
10
20
ns
TQVWH
Min
7T-x
3.5 T - x
15
10
20
ns
TWHQX
Min
T-x
0.5 T - x
10
8
15
ns
TRLAZ
Max
x
x
0
0
0
ns
TWHLH
Min
T-x
0.5 T - x
15
10
20
ns
TWHLH
Max
T+x
0.5 T + x
15
10
20
ns
External Data Memory Write Cycle
Figure 19-7. External Data Memory Write Cycle
TWHLH
ALE
PSEN
TLLWL
TWLWH
WR
TLLAX
PORT 0
A0-A7
TQVWX
TQVWH
TWHQX
DATA OUT
TAVWL
PORT 2
ADDRESS
OR SFR-P2
ADDRESS A8-A15 OR SFR P2
51
4431E–8051–04/06
19.5.6
External Data Memory Read Cycle
Figure 19-8. External Data Memory Read Cycle
TWHLH
TLLDV
ALE
PSEN
TLLWL
TRLRH
RLDV
T
RD
TLLAX
PORT 0
TRHDZ
TAVDV
TRHDX
A0-A7
DATA IN
TRLAZ
TAVWL
ADDRESS
OR SFR-P2
PORT 2
19.5.7
ADDRESS A8-A15 OR SFR P2
Serial Port Timing - Shift Register Mode
Table 19-11. Symbol Description
Symbol
Parameter
TXLXL
Serial port clock cycle time
TQVHX
Output data set-up to clock rising edge
TXHQX
Output data hold after clock rising edge
TXHDX
Input data hold after clock rising edge
TXHDV
Clock rising edge to input data valid
Table 19-12. AC Parameters for a Fix Clock
Speed
-V
-L
-L
standard mode 40
MHz
X2 mode
standard mode
20 MHz
30 MHz
-M
30 MHz
40 MHz
60 MHz equiv.
Max
Min
TXLXL
300
200
300
300
400
ns
TQVHX
200
117
200
200
283
ns
TXHQX
30
13
30
30
47
ns
TXHDX
0
0
0
0
0
ns
34
Min
Max
117
Min
Max
Units
Min
117
Max
40 MHz equiv.
Symbol
TXHDV
52
-V
X2 mode
117
Min
Max
200
ns
AT/TS8xC54/8X2
4431E–8051–04/06
AT/TS8xC54/8X2
Table 19-13. AC Parameters for a Variable Clock: derating formula
19.5.8
Symbol
Type
Standard
Clock
X2 Clock
TXLXL
Min
12 T
6T
TQVHX
Min
10 T - x
5T-x
50
50
50
ns
TXHQX
Min
2T-x
T-x
20
20
20
ns
TXHDX
Min
x
x
0
0
0
ns
TXHDV
Max
10 T - x
5 T- x
133
133
133
ns
-M
-V
-L
Units
ns
Shift Register Timing Waveforms
Figure 19-9. Shift Register Timing Waveforms
INSTRUCTION
0
1
2
3
4
5
6
7
8
ALE
TXLXL
CLOCK
TXHQX
TQVXH
OUTPUT DATA
WRITE to SBUF
INPUT DATA
CLEAR RI
0
1
2
3
4
5
6
7
TXHDX
TXHDV
VALID
VALID
VALID
SET TI
VALID
VALID
VALID
VALID
VALID
SET RI
53
4431E–8051–04/06
19.5.9
EPROM Programming and Verification Characteristics
TA = 21°C to 27°C; VSS = 0V; VCC = 5V ± 10% while programming. VCC = operating range while
verifying.
Table 19-14. EPROM Programming Parameters
Symbol
VPP
Programming Supply Voltage
IPP
Programming Supply Current
1/TCLCL
19.5.10
Parameter
Oscillator Frquency
Min
Max
Units
12.5
13
V
75
mA
6
MHz
4
TAVGL
Address Setup to PROG Low
48 TCLCL
TGHAX
Adress Hold after PROG
48 TCLCL
TDVGL
Data Setup to PROG Low
48 TCLCL
TGHDX
Data Hold after PROG
48 TCLCL
TEHSH
(Enable) High to VPP
48 TCLCL
TSHGL
VPP Setup to PROG Low
10
μs
TGHSL
VPP Hold after PROG
10
μs
TGLGH
PROG Width
90
TAVQV
Address to Valid Data
48 TCLCL
TELQV
ENABLE Low to Data Valid
48 TCLCL
TEHQZ
Data Float after ENABLE
110
0
μs
48 TCLCL
EPROM Programming and Verification Waveforms
Figure 19-10. EPROM Programming and Verification Waveforms
PROGRAMMING
VERIFICATION
ADDRESS
ADDRESS
P1.0-P1.7
P2.0-P2.5
P3.4-P3.5*
P
TAVQV
P0
DATA OUT
DATA IN
TGHDX
TGHAX
TDVGL
TAVGL
ALE/PROG
TSHGL
TGLGH
EA/VPP
VPP
VCC
CONTROL
SIGNALS
(ENABLE)
TGHSL
TEHSH
VCC
TELQV
TEHQZ
* 8KB: up to P2.4, 16KB: up to P2.5, 32KB: up to P3.4, 64KB: up to P3.5
54
AT/TS8xC54/8X2
4431E–8051–04/06
AT/TS8xC54/8X2
19.5.11
External Clock Drive Characteristics (XTAL1)
Table 19-15. AC Parameters
Symbol
Parameter
TCLCL
Oscillator Period
TCHCX
Max
Units
25
ns
High Time
5
ns
TCLCX
Low Time
5
ns
TCLCH
Rise Time
5
ns
TCHCL
Fall Time
5
ns
60
%
TCHCX/TCLCX
19.5.12
Min
Cyclic ratio in X2 mode
40
External Clock Drive Waveforms
Figure 19-11. External Clock Drive Waveforms
V
CC-0.5 V
0.45 V
CC
CC-0.1 V
0.7V
0.2V
T
CHCL
T
CLCX
T
T
CLCL
T
CHCX
CLCH
55
4431E–8051–04/06
19.5.13
AC Testing Input/Output Waveforms
Figure 19-12. AC Testing Input/Output Waveforms
V
CC-0.5 V
INPUT/OUTPUT
0.45 V
0.2V
CC+0.9
0.2V
CC-0.1
AC inputs during testing are driven at VCC - 0.5 for a logic “1” and 0.45V for a logic “0”. Timing
measurement are made at VIH min for a logic “1” and VIL max for a logic “0”.
19.5.14
Float Waveforms
Figure 19-13. Float Waveforms
FLOAT
V
OH-0.1 V
V
OL+0.1 V
V
LOAD
V
LOAD+0.1 V
LOAD-0.1 V
V
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
≥ ± 20mA.
19.5.15
56
Clock Waveforms
Valid in normal clock mode. In X2 mode XTAL2 signal must be changed to XTAL2 divided by
two.
AT/TS8xC54/8X2
4431E–8051–04/06
AT/TS8xC54/8X2
Figure 19-14. Clock Waveforms
INTERNAL
CLOCK
STATE4
STATE5
STATE6
STATE1
STATE2
P1P2
P1P2
P1P2
P1P2
P1P2
STATE3
P1P2
STATE4
P1P2
STATE5
P1P2
XTAL2
ALE
THESE SIGNALS ARE NOT ACTIVATED DURING THE
EXECUTION OF A MOVX INSTRUCTION
EXTERNAL PROGRAM MEMORY FETCH
PSEN
P0
DATA
SAMPLED
FLOAT
PCL OUT
DATA
SAMPLED
FLOAT
PCL OUT
DATA
SAMPLED
FLOAT
PCL OUT
INDICATES ADDRESS
P2 (EXT)
READ CYCLE
RD
PCL OUT (IF PROGRAM
MEMORY IS EXTERNAL)
P0
DPL OR Rt
FLOAT
INDICATES DPH OR P2 SFR TO PCH
TRANSITION
P2
WRITE CYCLE
WR
PCL OUT (EVEN IF PROGRAM
MEMORY IS INTERNAL)
P0
DPL OR Rt OUT
DATA OUT
PCL OUT (IF PROGRAM
MEMORY IS EXTERNAL)
INDICATES DPH OR P2 SFR TO PCH
TRANSITION
P2
PORT OPERATION
OLD DATA
P0 PINS SAMPLED
NEW DATA
P0 PINS SAMPLED
MOV DEST P0
MOV DEST PORT (P1, P2, P3)
(INCLUDES INT0, INT1, TO, T1)
P1, P2, P3 PINS SAMPLED
SERIAL PORT SHIFT CLOCK
RXD SAMPLED
P1, P2, P3 PINS SAMPLED
RXD SAMPLED
TXD (MODE 0)
This diagram indicates when signals are clocked internally. The time it takes the signals to propagate to the pins, however, ranges from 25 to 125 ns. This propagation delay is dependent on
variables such as temperature and pin loading. Propagation also varies from output to output
and component. Typically though (TA=25°C fully loaded) RD and WR propagation delays are
approximately 50ns. The other signals are typically 85 ns. Propagation delays are incorporated
in the AC specifications.
57
4431E–8051–04/06
20. Ordering Information
Table 20-1.
58
Possible Ordering Entries
Part Number
Supply Voltage
Temperature Range
Package
Packing
TS80C54X2xxx-MCA
-5 to +/-10%
Commercial
PDIL40
Stick
TS80C54X2xxx-MCB
-5 to +/-10%
Commercial
PLCC44
Stick
TS80C54X2xxx-MCC
-5 to +/-10%
Commercial
PQFP44
Tray
TS80C54X2xxx-MCE
-5 to +/-10%
Commercial
VQFP44
Tray
TS80C54X2xxx-VCA
-5 to +/-10%
Commercial
PDIL40
Stick
TS80C54X2xxx-VCB
-5 to +/-10%
Commercial
PLCC44
Stick
TS80C54X2xxx-VCC
-5 to +/-10%
Commercial
PQFP44
Tray
TS80C54X2xxx-VCE
-5 to +/-10%
Commercial
VQFP44
Tray
TS80C54X2xxx-LCA
-5 to +/-10%
Commercial
PDIL40
Stick
TS80C54X2xxx-LCB
-5 to +/-10%
Commercial
PLCC44
Stick
TS80C54X2xxx-LCC
-5 to +/-10%
Commercial
PQFP44
Tray
TS80C54X2xxx-LCE
-5 to +/-10%
Commercial
VQFP44
Tray
TS80C54X2xxx-MIA
-5 to +/-10%
Industrial
PDIL40
Stick
TS80C54X2xxx-MIB
-5 to +/-10%
Industrial
PLCC44
Stick
TS80C54X2xxx-MIC
-5 to +/-10%
Industrial
PQFP44
Tray
TS80C54X2xxx-MIE
-5 to +/-10%
Industrial
VQFP44
Tray
TS80C54X2xxx-VIA
-5 to +/-10%
Industrial
PDIL40
Stick
TS80C54X2xxx-VIB
-5 to +/-10%
Industrial
PLCC44
Stick
TS80C54X2xxx-VIC
-5 to +/-10%
Industrial
PQFP44
Tray
TS80C54X2xxx-VIE
-5 to +/-10%
Industrial
VQFP44
Tray
TS80C54X2xxx-LIA
-5 to +/-10%
Industrial
PDIL40
Stick
TS80C54X2xxx-LIB
-5 to +/-10%
Industrial
PLCC44
Stick
TS80C54X2xxx-LIC
-5 to +/-10%
Industrial
PQFP44
Tray
TS80C54X2xxx-LIE
-5 to +/-10%
Industrial
VQFP44
Tray
AT80C54X2zzz-3CSUM
-5 to +/-10%
Industrial & Green
PDIL40
Stick
AT80C54X2zzz-SLSUM
-5 to +/-10%
Industrial & Green
PLCC44
Stick
AT80C54X2zzz-RLTUM
-5 to +/-10%
Industrial & Green
VQFP44
Tray
AT80C54X2zzz-3CSUL
-5 to +/-10%
Industrial & Green
PDIL40
Stick
AT80C54X2zzz-SLSUL
-5 to +/-10%
Industrial & Green
PLCC44
Stick
AT80C54X2zzz-RLTUL
-5 to +/-10%
Industrial & Green
VQFP44
Tray
AT80C54X2zzz-3CSUV
-5 to +/-10%
Industrial & Green
PDIL40
Stick
AT80C54X2zzz-SLSUV
-5 to +/-10%
Industrial & Green
PLCC44
Stick
AT80C54X2zzz-RLTUV
-5 to +/-10%
Industrial & Green
VQFP44
Tray
TS87C54X2-MCA
5V ±10%
Commercial
PDIL40
Stick
TS87C54X2-MCB
5V ±10%
Commercial
PLCC44
Stick
AT/TS8xC54/8X2
4431E–8051–04/06
AT/TS8xC54/8X2
Part Number
Supply Voltage
Temperature Range
Package
Packing
TS87C54X2-MCC
5V ±10%
Commercial
PQFP44
Tray
TS87C54X2-MCE
5V ±10%
Commercial
VQFP44
Tray
TS87C54X2-VCA
5V ±10%
Commercial
PDIL40
Stick
TS87C54X2-VCB
5V ±10%
Commercial
PLCC44
Stick
TS87C54X2-VCC
5V ±10%
Commercial
PQFP44
Tray
TS87C54X2-VCE
5V ±10%
Commercial
VQFP44
Tray
TS87C54X2-LCA
2.7 to 5.5V
Commercial
PDIL40
Stick
TS87C54X2-LCB
2.7 to 5.5V
Commercial
PLCC44
Stick
TS87C54X2-LCC
2.7 to 5.5V
Commercial
PQFP44
Tray
TS87C54X2-LCE
2.7 to 5.5V
Commercial
VQFP44
Tray
TS87C54X2-MIA
5V ±10%
Industrial
PDIL40
Stick
TS87C54X2-MIB
5V ±10%
Industrial
PLCC44
Stick
TS87C54X2-MIC
5V ±10%
Industrial
PQFP44
Tray
TS87C54X2-MIE
5V ±10%
Industrial
VQFP44
Tray
TS87C54X2-VIA
5V ±10%
Industrial
PDIL40
Stick
TS87C54X2-VIB
5V ±10%
Industrial
PLCC44
Stick
TS87C54X2-VIC
5V ±10%
Industrial
PQFP44
Tray
TS87C54X2-VIE
5V ±10%
Industrial
VQFP44
Tray
TS87C54X2-LIA
2.7 to 5.5V
Industrial
PDIL40
Stick
TS87C54X2-LIB
2.7 to 5.5V
Industrial
PLCC44
Stick
TS87C54X2-LIC
2.7 to 5.5V
Industrial
PQFP44
Tray
TS87C54X2-LIE
2.7 to 5.5V
Industrial
VQFP44
Tray
AT87C54X2-3CSUM
5V ±10%
Industrial & Green
PDIL40
Stick
AT87C54X2-SLSUM
5V ±10%
Industrial & Green
PLCC44
Stick
AT87C54X2-RLTUM
5V ±10%
Industrial & Green
VQFP44
Tray
AT87C54X2-3CSUL
2.7 to 5.5V
Industrial & Green
PDIL40
Stick
AT87C54X2-SLSUL
2.7 to 5.5V
Industrial & Green
PLCC44
Stick
AT87C54X2-RLTUL
2.7 to 5.5V
Industrial & Green
VQFP44
Tray
AT87C54X2-3CSUV
5V ±10%
Industrial & Green
PDIL40
Stick
AT87C54X2-SLSUV
5V ±10%
Industrial & Green
PLCC44
Stick
AT87C54X2-RLTUV
5V ±10%
Industrial & Green
VQFP44
Tray
59
4431E–8051–04/06
60
Part Number
Supply Voltage
Temperature Range
Package
Packing
TS80C58X2xxx-MCA
-5 to +/-10%
Commercial
PDIL40
Stick
TS80C58X2xxx-MCB
-5 to +/-10%
Commercial
PLCC44
Stick
TS80C58X2xxx-MCC
-5 to +/-10%
Commercial
PQFP44
Tray
TS80C58X2xxx-MCE
-5 to +/-10%
Commercial
VQFP44
Tray
TS80C58X2xxx-VCA
-5 to +/-10%
Commercial
PDIL40
Stick
TS80C58X2xxx-VCB
-5 to +/-10%
Commercial
PLCC44
Stick
TS80C58X2xxx-VCC
-5 to +/-10%
Commercial
PQFP44
Tray
TS80C58X2xxx-VCE
-5 to +/-10%
Commercial
VQFP44
Tray
TS80C58X2xxx-LCA
-5 to +/-10%
Commercial
PDIL40
Stick
TS80C58X2xxx-LCB
-5 to +/-10%
Commercial
PLCC44
Stick
TS80C58X2xxx-LCC
-5 to +/-10%
Commercial
PQFP44
Tray
TS80C58X2xxx-LCE
-5 to +/-10%
Commercial
VQFP44
Tray
TS80C58X2xxx-MIA
-5 to +/-10%
Industrial
PDIL40
Stick
TS80C58X2xxx-MIB
-5 to +/-10%
Industrial
PLCC44
Stick
TS80C58X2xxx-MIC
-5 to +/-10%
Industrial
PQFP44
Tray
TS80C58X2xxx-MIE
-5 to +/-10%
Industrial
VQFP44
Tray
TS80C58X2xxx-VIA
-5 to +/-10%
Industrial
PDIL40
Stick
TS80C58X2xxx-VIB
-5 to +/-10%
Industrial
PLCC44
Stick
TS80C58X2xxx-VIC
-5 to +/-10%
Industrial
PQFP44
Tray
TS80C58X2xxx-VIE
-5 to +/-10%
Industrial
VQFP44
Tray
TS80C58X2xxx-LIA
-5 to +/-10%
Industrial
PDIL40
Stick
TS80C58X2xxx-LIB
-5 to +/-10%
Industrial
PLCC44
Stick
TS80C58X2xxx-LIC
-5 to +/-10%
Industrial
PQFP44
Tray
TS80C58X2xxx-LIE
-5 to +/-10%
Industrial
VQFP44
Tray
AT80C58X2zzz-3CSUM
-5 to +/-10%
Industrial & Green
PDIL40
Stick
AT80C58X2zzz-SLSUM
-5 to +/-10%
Industrial & Green
PLCC44
Stick
AT80C58X2zzz-RLTUM
-5 to +/-10%
Industrial & Green
VQFP44
Tray
AT80C58X2zzz-3CSUL
-5 to +/-10%
Industrial & Green
PDIL40
Stick
AT80C58X2zzz-SLSUL
-5 to +/-10%
Industrial & Green
PLCC44
Stick
AT80C58X2zzz-RLTUL
-5 to +/-10%
Industrial & Green
VQFP44
Tray
AT80C58X2zzz-3CSUV
-5 to +/-10%
Industrial & Green
PDIL40
Stick
AT80C58X2zzz-SLSUV
-5 to +/-10%
Industrial & Green
PLCC44
Stick
AT80C58X2zzz-RLTUV
-5 to +/-10%
Industrial & Green
VQFP44
Tray
TS87C58X2-MCA
5V ±10%
Commercial
PDIL40
Stick
TS87C58X2-MCB
5V ±10%
Commercial
PLCC44
Stick
TS87C58X2-MCC
5V ±10%
Commercial
PQFP44
Tray
AT/TS8xC54/8X2
4431E–8051–04/06
AT/TS8xC54/8X2
Part Number
Supply Voltage
Temperature Range
Package
Packing
TS87C58X2-MCE
5V ±10%
Commercial
VQFP44
Tray
TS87C58X2-VCA
5V ±10%
Commercial
PDIL40
Stick
TS87C58X2-VCB
5V ±10%
Commercial
PLCC44
Stick
TS87C58X2-VCC
5V ±10%
Commercial
PQFP44
Tray
TS87C58X2-VCE
5V ±10%
Commercial
VQFP44
Tray
TS87C58X2-LCA
2.7 to 5.5V
Commercial
PDIL40
Stick
TS87C58X2-LCB
2.7 to 5.5V
Commercial
PLCC44
Stick
TS87C58X2-LCC
2.7 to 5.5V
Commercial
PQFP44
Tray
TS87C58X2-LCE
2.7 to 5.5V
Commercial
VQFP44
Tray
TS87C58X2-MIA
5V ±10%
Industrial
PDIL40
Stick
TS87C58X2-MIB
5V ±10%
Industrial
PLCC44
Stick
TS87C58X2-MIC
5V ±10%
Industrial
PQFP44
Tray
TS87C58X2-MIE
5V ±10%
Industrial
VQFP44
Tray
TS87C58X2-VIA
5V ±10%
Industrial
PDIL40
Stick
TS87C58X2-VIB
5V ±10%
Industrial
PLCC44
Stick
TS87C58X2-VIC
5V ±10%
Industrial
PQFP44
Tray
TS87C58X2-VIE
5V ±10%
Industrial
VQFP44
Tray
TS87C58X2-LIA
2.7 to 5.5V
Industrial
PDIL40
Stick
TS87C58X2-LIB
2.7 to 5.5V
Industrial
PLCC44
Stick
TS87C58X2-LIC
2.7 to 5.5V
Industrial
PQFP44
Tray
TS87C58X2-LIE
2.7 to 5.5V
Industrial
VQFP44
Tray
AT87C58X2-3CSUM
5V ±10%
Industrial & Green
PDIL40
Stick
AT87C58X2-SLSUM
5V ±10%
Industrial & Green
PLCC44
Stick
AT87C58X2-RLTUM
5V ±10%
Industrial & Green
VQFP44
Tray
AT87C58X2-3CSUL
2.7 to 5.5V
Industrial & Green
PDIL40
Stick
AT87C58X2-SLSUL
2.7 to 5.5V
Industrial & Green
PLCC44
Stick
AT87C58X2-RLTUL
2.7 to 5.5V
Industrial & Green
VQFP44
Tray
AT87C58X2-3CSUV
5V ±10%
Industrial & Green
PDIL40
Stick
AT87C58X2-SLSUV
5V ±10%
Industrial & Green
PLCC44
Stick
AT87C58X2-RLTUV
5V ±10%
Industrial & Green
VQFP44
Tray
21. Datasheet Revision History
21.1
Changes from Rev. C 01/01 to Rev. D 11/05
1. Added green product Ordering Information.
21.2
Changes from Rev. D 11/05 to Rev. E 04/06
1. Changed value of AUXR register.
61
4431E–8051–04/06
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4431E–8051–04/06