HD64F3437STF16V Renesas Electronics America, HD64F3437STF16V Datasheet - Page 152

• Manufacturer Part Number: HD64F3437STF16V
• Description: MCU 3/5V 60K PB-FREE 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300r

Specifications of HD64F3437STF16V

• Core Processor: H8/300
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: Host Interface, I²C, SCI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 74
• Program Memory Size: 60KB (60K x 8)
• Program Memory Type: FLASH
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Mode 3: In mode 3 (single-chip mode), when the host interface enable bit (HIE) is cleared to 0 in
the system control register (SYSCR), port 3 is a general-purpose input/output port. A pin becomes
an output pin when its P3DDR bit is set to 1, and an input pin when this bit is cleared to 0.
When the HIE bit is set to 1, selecting slave mode, port 3 becomes the host interface data bus
(HDB
Figure 7.11 shows the pin functions in mode 3.
7.4.4
Port 3 has built-in programmable input pull-up transistors that are available in mode 3. The pull-up
for each bit can be turned on and off individually. To turn on an input pull-up in mode 3, set the
corresponding P3PCR bit to 1 and clear the corresponding P3DDR bit to 0. P3PCR is cleared to
H'00 by a reset and in hardware standby mode, turning all input pull-ups off. In software standby
mode, the previous state is maintained.
Table 7.7 indicates the states of the input pull-up transistors in each operating mode.
Table 7.7
Mode
1
2
3
Notes: Off:
120
7
to HDB
On/off: The input pull-up transistor is on if P3PCR = 1 and P3DDR = 0, but off otherwise.
Input Pull-Up Transistors
Reset
Off
Off
Off
States of Input Pull-Up Transistors (Port 3)
0
). For details, see section 14, Host Interface.
The input pull-up transistor is always off.
Port 3
Hardware Standby
Off
Off
Off
Figure 7.11 Pin Functions in Mode 3 (Port 3)
P3
P3
P3
P3
P3
P3
P3
P3
7
6
5
4
3
2
1
0
(input/output)/HDB
(input/output)/HDB
(input/output)/HDB
(input/output)/HDB
(input/output)/HDB
(input/output)/HDB
(input/output)/HDB
(input/output)/HDB
Software Standby
Off
Off
On/off
7
6
5
4
3
2
1
0
(input/output)
(input/output)
(input/output)
(input/output)
(input/output)
(input/output)
(input/output)
(input/output)
Other Operating Modes
Off
Off
On/off