T48C862M-R4-TNQ Atmel, T48C862M-R4-TNQ Datasheet - Page 35

• Manufacturer Part Number: T48C862M-R4-TNQ
• Description: IC MON TIRE PRESS 433MHZ 24-SOIC
• Manufacturer: Atmel

Specifications of T48C862M-R4-TNQ

• Frequency: 433MHz
• Modulation Or Protocol: FM, FSK
• Data Rate - Maximum: 32 kBaud
• Power - Output: 10dBm
• Current - Transmitting: 9.5mA
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Memory Size: 1KB EEPROM, 1KB RAM
• Voltage - Supply: 2 V ~ 4 V
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 24-SOIC (0.200", 5.30mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Features: -
• Applications: -

Port 2 Data Register (P2DAT)
Port 2 Control Register (P2CR)
Bi-directional Port 5
4551C–4BMCU–01/04
* Bit 3 -> MSB, Bit 0 -> LSB
Value: 1111b means all pins in input mode
Table 10. Port 2 Control Register
As all other bi-directional ports, this port includes a bitwise programmable Control Reg-
ister (P5CR), which allows the individual programming of each port bit as input or
output. It also opens up the possibility of reading the pin condition when in output mode.
This is a useful feature for self testing and for serial bus applications.
The port pins can also be used as external interrupt inputs (see Figure 30 on page 36
and Figure 31 on page 36). The interrupts (INT1 and INT6) can be masked or indepen-
dently configured to trigger on either edge. The interrupt configuration and port direction
is controlled by the Port 5 Control Register (P5CR). An additional low resistance pull-
up/pull-down transistor mask option provides an internal bus pull-up for serial bus
applications.
The Port 5 Data Register (P5DAT) is I/O mapped to the primary address register of
address "5"h and the Port 5 Control Register (P5CR) to the corresponding auxiliary
register. The P5CR is a byte-wide register and is configured by writing first the low
nibble and then the high nibble (see section “Addressing Peripherals” on page 30).
P2DAT3
P2CR3
Bit 3 *
Bit 3
3 2 1 0
x x x 1
x x x 0
x x 1 x
x x 0 x
x 1 x x
x 0 x x
1 x x x
0 x x x
Code
P2DAT2
P2CR2
Bit 2
Bit 2
Function
BP20 in input mode
BP20 in output mode
BP21 in input mode
BP21 in output mode
BP22 in input mode
BP22 in output mode
BP23 in input mode
BP23 in output mode
P2DAT1
P2CR1
Bit 1
Bit 1
P2DAT0
P2CR0
T48C862-R4 [Preliminary]
Bit 0
Bit 0
Primary register address: "2"hex
Auxiliary register address: "2"hex
Reset value: 1111b
Reset value: 1111b
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