8-Bit Microcontrollers - Toshiba TLCS-900 Family Product Manual

8-
bit Microcontrollers
TLCS-870
8-bit microcontrollers suitable for a wide range of consumer products such as home appliances,
communications devices and inverter-controlled equipment
The TLCS-870 Family consists of 8-bit microcontrollers developed for consumer applications such as home appliances, TVs, audio equipment, tele-
phones, motor control and lighting devices. The product line-up includes microcontrollers incorporating various functions to suit these applications,
including an AD converter, LCD driver, UART, on-screen display circuit, IGBT controller and PMD circuit. The 870 Family also offers products featur-
ing low-voltage, low-power-consumption and low-noise operation that are suitable for portable equipment and many other applications. The 870
Family has been reinforced by the TLCS-870/C1 Series which delivers enhanced processing capability and upgraded low-voltage and low-power-
consumption features such as on-chip Flash memory, a voltage detecting circuit and a power-on reset circuit.
Toshiba microcomputer core line-up
Series
Processor core features
Maximum operating frequency
Minimum instruction execution time
Address space
Interrupt vector (max)
Instruction set
Operating voltage range (typ.)
Features of TLCS-870 Family
Register configuration
[TLCS-870/C1 Series]
2 banks
W A
B C
D E
H L
IX
IY
15
SP
15
PC
15
PSW
7
Family
Series
Address space extended to
1Mbyte
Series
Core architecture optimized for C compiler
870/C Series
16 MHz
0.25 µs/0.167 µs
64 Kbytes
31
731 instructions
1.8 to 5.5 V
NEW
Memory management method (segment method)
Toshiba's proprietary memory segment method manages instruction codes and data
independently in separate memory address spaces. This new method enables memory
address space extension without affecting processing speed or code efficiency for
small- to large-sized programs exceeding 64 Kbytes.
Segment method
Conventional 8-bit product
Code
Data
0
Code: Instruction op-codes and operands
Data: Sources and destinations of load and
0
arithmetic instructions, etc.
Compact core and object sizes
0
Compared to the address bus extension
method, core and code sizes are
0
reduced. The instruction set is compatible
with TLCS-870/C.
NEW
Series
High-speed processing capability equivalent to 16-bit microcontrollers
Address space extended to 128 Kbytes
5-V operation
On-chip debug function
870/X Series 870 Series
20 MHz 8 MHz
0.2 µs 0.5 µs
1 Mbyte 64 Kbytes
63 15
842 instructions 412 instructions
2.7 to 5.5 V 2.7 to 5.5 V/6.0 V
Segment method
Code
Additional code
Data
Software design facilitated
Unlike the bank switching method, small- to large-
sized programs need not be modified. Processing
speed and code efficiency are unaffected even if
the code size exceeds 64 Kbytes.
NEW
870/C1 Series
8 MHz
0.125 µs
128 Kbytes
52
732 instructions
2.7 to 5.5 V
NEW
[TLCS-870/C1 Series]
64-Kbyte code
segment
64-Kbyte code
segment
47