3
Table 1.1
Features (cont)
Item
Description
Memory
Large on-chip memory
•
H8/3822R: 16-kbyte ROM, 1-kbyte RAM
•
H8/3823R: 24-kbyte ROM, 1-kbyte RAM
•
H8/3824R: 32-kbyte ROM, 2-kbyte RAM
•
H8/3825R: 40-kbyte ROM, 2-kbyte RAM
•
H8/3826R: 48-kbyte ROM, 2-kbyte RAM
•
H8/3827R: 60-kbyte ROM, 2-kbyte RAM
I/O ports
64 pins
•
55 I/O pins
•
9 input pins
Timers
Six on-chip timers
•
Timer A: 8-bit timer
Count-up timer with selection of eight internal clock signals divided
from the system clock (ø)
*
and four clock signals divided from the
watch clock (ø
w
)
*
•
Asynchronous event counter: 16-bit timer
Count-up timer able to count asynchronous external events
independently of the MCU's internal clocks
•
Timer C: 8-bit timer
Count-up/down timer with selection of seven internal clock signals
or event input from external pin
Auto-reloading
•
Timer F: 16-bit timer
Can be used as two independent 8-bit timers
Count-up timer with selection of four internal clock signals or event
input from external pin
Provision for toggle output by means of compare-match function
•
Timer G: 8-bit timer
Count-up timer with selection of four internal clock signals
Incorporates input capture function (built-in noise canceler)
•
Watchdog timer
Reset signal generated by overflow of 8-bit counter
Note:
*
See section 4, Clock Pulse Generator, for the definition of ø and ø
w
.