MB91133/MB91F133
16
(Continued)
Note : In most of the above pins, the input/output of the I/O ports and resources are multiplexed, such as xxxx/Pxx.
If the output from ports and resources of those pins compete with each other, the resource is given priority.
Pin No.
Pin name
Circuit
type
Function
130
DACK1/PL4
F
DMA external transfer request reception output
This function is valid when external transfer request reception out-
put specification of the DMA controller is permitted. Can be used
as a port when transfer request reception output specification of
the DMA controller is prohibited.
DMA external transfer termination output
This function is valid when external transfer termination output
specification of the DMA controller is permitted.
DMA external transfer request input
This input is always used if selected as the transfer factor for the
DMA controller, so output by ports should be stopped except when
carried out intentionally. Can be used as a port when DMA exter-
nal transfer request input is not used.
DMA external transfer request reception output
This function is valid when external transfer request reception out-
put specification of the DMA controller is permitted. Can be used
as a port when transfer request reception output specification of
the DMA controller is prohibited.
External reset input
131
DEOP1/PL5
F
132
DREQ2/PL6
F
133
DACK2/PL7
F
134
136
137
139
140
142
143
144
112
113
114
RST
X0A
X1A
X0
X1
MD0
MD1
MD2
DAVS
DAVC
AV
CC
B
K
Oscillation pin for low-speed clock (32 kHz)
A
Oscillation pin for high-speed clock (16.5 MHz)
G
Mode pins
Basic MCU operation mode is set by these pins. They should be
directly connected to V
CC
or V
SS
for use.
Ground pin of D/A converter (connected to analog ground)
Power pin of D
/
A converter
Power pin for A
/
D converter
Reference voltage pin for A
/
D converter (high electric poten-
tial side)
When this pin is turned on/off, AVRH or more electric potential
must be supplied to V
CC
.
Reference voltage pin for A
/
D converter (low electric potential
side)
Ground pin for A
/
D converter (connected to analog ground)
5 V power of digital circuit
Power must be connected to all V
CC
5 pins for use.
3 V power of digital circuit
Power must be connected to all V
CC
3 pins for use.
115
AVRH
116
AVRL
117
AV
SS
27, 108
V
CC
5
44, 92
138
9, 26, 52,
91, 135,
141
V
CC
3
V
SS
Ground level of digital circuit