M37221M4H/M6H/M8H/MAH–XXXSP/FP M37221EASP/FP
6. PERFORMANCE OVERVIEW
Table 6.1 Performance Overview
Parameter
Functions
Number of basic instructions
Number of basic instructions
71
0.5 µs (the minimum instruction execution time, at 8 MHz oscillation fre
quency)
Instruction execution time
8 MHz (maximum)
16K bytes
Memory size
ROM M37221M4H-XXXSP/FP
M37221M6H-XXXSP/FP
M37221M8H-XXXSP/FP
24K bytes
32K bytes
M37221MAH-XXXSP/FP,
M37221EASP/FP
40K bytes
RAM M37221M4H-XXXSP/FP
M37221M6H-XXXSP/FP
M37221M8H-XXXSP/FP
384 bytes (ROM correction memory included)
448 bytes (ROM correction memory included)
576 bytes (ROM correction memory included)
704 bytes (ROM correction memory included)
M37221MAH-XXXSP/FP,
M37221EASP/FP
OSD ROM
OSD RAM
8 K bytes
96 bytes
tInput/Output ports
P0
I/O
I/O
I/O
I/O
I/O
I/O
8-bit 5 1 (N-channel open-drain output structure, can be used as PWM
output pins, INT input pins, A-D input pin)
P10, P15–P17
P11–P14
P20, P21
P22–P27
P30, P31
4-bit ● 1 (CMOS input/output structure, can be used as OSD output pin,
A-D input pins, INT input pin)
2
4-bit ● 1 (CMOS input/output structure, can be used as multi-master I C-
BUS interface)
2-bit ● 1 (CMOS input/output or N-channel open-drain output structure,
can be used as serial I/O pins)
6-bit ● 1 (CMOS input/output structure, can be used as serial input pin,
timer external clock input pins)
2-bit ● 1 (CMOS input/output or N-channel open-drain output structure, can
be used as A-D input pins, D-A conversion output pins <Only M37221EASP/FP>)
P32
I/O
1-bit ● 1 (N-channel open-drain output structure)
2-bit ● 1 (can be used as OSD display clock I/O pins)
4-bit ● 1 (CMOS output structure, can be used as OSD output pins)
8-bit ● 1
P33, P34
P52–P55
Input
Output
Serial I/O
2
Multi-master I C-BUS interface
A-D comparator
1 (2 systems)
6 channels (6-bit resolution)
2 (6-bit resolution) (Only M37221EASP/FP)
14-bit ● 1, 8-bit ● 6
D-A converter
PWM output circuit
Timers
8-bit timer ● 4
ROM correction function
2 vectors
Subroutine nesting
M37221M4H/M6H-XXXSP/FP
96 levels (maximum)
M37221M8H/MAH-XXXSP/FP,
M37221EASP/FP
128 levels (maximum)
Interrupt
<14 sources>
INT external interrupt ● 3, Internal timer interrupt ● 4, Serial I/O interrupt ● 1,
2
OSD interrupt ● 1, Multi-master I C-BUS interface interrupt ● 1, f(XIN)/4096
interrupt ● 1, VSYNC interrupt ● 1, BRK interrupt ● 1, Reset ● 1
Clock generating circuit
2 built-in circuits (externally connected a ceramic resonator or a quartz-
crystal oscillator)
Rev.1.00 Oct 01, 2002 page 6 of 110
REJ03B0134-0100Z
RENESAS [ RENESAS TECHNOLOGY CORP ]
