37
CHAPTER 1 GENERAL (
µ
PD78054 Subseries)
1.1 Features
On-chip high-capacity ROM and RAM
Notes
1. The capacities of internal PROM and internal high-speed RAM can be changed by means of the
memory size switching register (IMS).
2. The capacity of internal high-speed RAM can be changed by means of the internal expansion RAM
size switching register (IXS).
External Memory Expansion Space: 64 Kbytes
Minimum instruction execution time changeable from high speed (0.4
µ
s: In main system clock 5.0 MHz operation)
to ultra-low speed (122
µ
s: In subsystem clock 32.768 kHz operation)
Instruction set suited to system control
• Bit manipulation possible in all address spaces
• Multiply and divide instructions
69 I/O ports: (4 N-ch open-drain ports)
8-bit resolution A/D converter: 8 channels
8-bit resolution D/A converter: 2 channels
Serial interface: 3 channels
• 3-wire serial I/O/SBI/2-wire serial I/O mode: 1 channel
• 3-wire serial I/O mode (Automatic transmit/receive function): 1 channel
• 3-wire serial I/O/UART mode: 1 channel
Timer: 5 channels
• 16-bit timer/event counter : 1 channel
• 8-bit timer/event counter : 2 channels
• Watch timer : 1 channel
• Watchdog timer : 1 channel
22 vectored interrupt sources
2 test inputs
Two types of on-chip clock oscillators (main system clock and subsystem clock)
Supply voltage: V
DD
= 2.0 to 6.0 V
Program Memory
(ROM)
Part Number
Type
µ
PD78052
µ
PD78053
µ
PD78054
µ
PD78P054
µ
PD78055
µ
PD78056
µ
PD78058
µ
PD78P058
16 Kbytes
24 Kbytes
32 Kbytes
32 Kbytes
Note1
40 Kbytes
48 Kbytes
60 Kbytes
60 Kbytes
Note1
512 bytes
1024 bytes
1024 bytes
Note1
1024 bytes
1024 bytes
Note1
Internal High-Speed RAM
Internal Buffer RAM
Internal Expansion RAM
32 bytes
None
1024 bytes
1024 bytes
Note2
Data Memory
Содержание PD78052
Страница 2: ...2 MEMO ...
Страница 8: ...8 MEMO ...
Страница 16: ...16 MEMO ...
Страница 36: ...36 MEMO ...
Страница 158: ...158 MEMO ...
Страница 174: ...174 MEMO ...
Страница 240: ...240 MEMO ...
Страница 260: ...260 MEMO ...
Страница 340: ...340 MEMO ...
Страница 392: ...392 MEMO ...
Страница 438: ...438 MEMO ...
Страница 482: ...482 CHAPTER 20 REAL TIME OUTPUT PORT MEMO ...
Страница 510: ...510 MEMO ...
Страница 524: ...524 MEMO ...
Страница 560: ...560 MEMO ...
Страница 576: ...576 MEMO ...
Страница 598: ...598 MEMO ...
Страница 602: ...602 MEMO ...