M30800SFP-BL#D5 Renesas Electronics America, M30800SFP-BL#D5 Datasheet - Page 203

• Manufacturer Part Number: M30800SFP-BL#D5
• Description: MCU 3/5V 0K 100-QFP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M16C/80r

Specifications of M30800SFP-BL#D5

• Core Processor: M16C/80
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: SIO, UART/USART
• Peripherals: DMA, PWM, WDT
• Number Of I /o: 45
• Program Memory Type: ROMless
• Ram Size: 10K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 10x10b, D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 100-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Program Memory Size: -

M
R
R
26. Programmable I/O Ports
e
E
1
v
J
6
1 .
0
C
There are 87 programmable I/O ports for 100-pin version: P0 to P10 (excluding P8
grammable I/O ports for 144-pin version: P0 to P15 (excluding P8
input or output using the direction register. A pull-up resistance for each block of 4 ports can be set. P8
an input-only port and has no built-in pull-up resistance.
Figures 26.1 to 26.3 show the programmable I/O ports.
Each pin functions as a programmable I/O port and as the I/O for the built-in peripheral devices.
To use the pins as the inputs for the built-in peripheral devices, set the direction register of each pin to input
mode. When the pins are used as the outputs for the built-in peripheral devices (other than the D/A con-
verter), set the corresponding function select registers A, B and C. When pins are to be used as the outputs
for the D/A converter, set the function select register of each pin to I/O port, and set the direction registers
to input mode.
Table 26.1 lists each port and peripheral function.
See the descriptions of the respective functions for how to set up the built-in peripheral devices.
(1) Direction registers
(2) Port registers
(3) Function select register A
9
0 .
8 /
B
Figures 26.4 and 26.5 show the direction registers.
These registers are used to choose the direction of the programmable I/O ports. Each bit in these regis-
ters corresponds one for one to each I/O pin.
In memory expansion and microprocessor mode, the contents of corresponding direction register of
pins A
BCLK/ALE/CLK
Note: There is no direction register bit for P8
Figures 26.6 and 26.7 show the port registers.
These registers are used to write and read data for input and output to and from an external device. A
port register consists of a port latch to hold output data and a circuit to read the status of a pin. Each bit
in port registers corresponds one for one to each I/O pin.
In memory expansion and microprocessor mode, the contents of corresponding port register of pins A
A
CLK
Figures 26.8 and 26.9 show the function select registers A.
The register is used to select port output and peripheral function output when the port functions for both
port output and peripheral function output.
Each bit of this register corresponds to each pin that functions for both port output and peripheral function
output.
0
0
0
22
1
A
8
G
, A
u
7
OUT
______
o r
. g
0 -
23
0
u
1
0
to A
p
, D
, HLDA/ALE, HOLD, ALE/RAS, and RDY are not changed.
0
, 2
0
_________
0
2
22
0
to D
0
, A
5
_____
OUT
Page 190
23
15
, D
, MA
, HLDA/ALE, HOLD, ALE/RAS, and RDY are not changed.
_________
0
_________
0
to D
to MA
f o
15
, MA
3
12
2
9
, CS0 to CS 3, WRL/WR/CASL, WRH/BHE/CASH, RD/DW, BCLK/ALE/
_________
_______
0
_______
to MA
_______
12
, CS0 to CS 3, WRL/WR/CASL, WRH/BHE/CASH, RD/DW,
5
_______
_______
.
_______
_______
_______
_____ _________
_______
_______
5
). Each port can be set independently for
_____ _________
_______
_______
26. Programmable I/O Ports
_______
_______
5
_______
). There are 123 pro-
_____ _____
_______
_____ _____
0
5
to
is