![](http://datasheet.mmic.net.cn/330000/MB90P214BPF_datasheet_16438128/MB90P214BPF_7.png)
7
MB90210 Series
I
PIN DESCRIPTION
* :FPT-80P-M06, FPT-80C-C02
(Continued)
Pin no.
QFP*
64,
65
62
Pin name
Circuit
type
Function
X0,
X1
RST
A
Crystal oscillator pins (16 MHz)
H
External reset request input pin
66
11,
34,
63
V
CC
V
SS
Power supply
Digital circuit power supply pin
Power supply
Digital circuit grounding level
67 to 74
P00 to P07
B
General-purpose I/O ports
These ports are available only in the single-chip mode.
I/O pins for the lower eight bits of external data bus
These pins are available in an external-bus mode.
D00 to D07
75 to 80,
1,
2
P10 to P15,
P16,
P17
B
General-purpose I/O ports
These ports are available in the single-chip mode and in an
external-bus mode with the 8-bit data bus specified.
D08 to D13,
D14,
D15
I/O pins for the upper eight bits of external data bus
These pins are available in an external-bus mode with the 16-bit
data bus specified.
3 to 6
P20 to P23
E
General-purpose I/O ports
These ports are available only in the single-chip mode.
Output pins for external address buses A00 to A03
These pins are available in an external-bus mode.
16-bit reload timer 1 (ch.0 to ch.3) input pins
These pins are available when the 16-bit reload timer 1 (ch.0 to
ch.3) input specification is “enabled”. The data on the pin is read
as the 16-bit reload timer 1 (ch.0 to ch.3) input (TIN0 to TIN3).
A00 to A03
TIN0 to TIN3
7 to 10
P24 to P27
E
General-purpose I/O ports
These ports are available only in the single-chip mode.
Output pins for external address buses A04 to A07
These pins are available in an external-bus mode.
16-bit reload timer 2 (ch.4 to ch.7) input pins
These pins are available when the 16-bit reload timer 2 (ch.4 to
ch.7) input specification is “enabled”. The data on the pin is read
as the 16-bit reload timer 2 (ch.4 to ch.7) input (TIN4 to TIN7).
General-purpose I/O port
This port is available in the single-chip mode or when the middle
address control register setting is “port.”
Output pin for external address bus A08
This pin is available in an external-bus mode and when the middle
address control register set to “address.”
A04 to A07
TIN4 to TIN7
12
P30
E
A08