EM250-RTR Ember, EM250-RTR Datasheet - Page 40

• Manufacturer Part Number: EM250-RTR
• Description: IC ZIGBEE SYSTEM-ON-CHIP 48-QFN
• Manufacturer: Ember
• Series: EM250r

Specifications of EM250-RTR

• Frequency: 2.4GHz
• Modulation Or Protocol: 802.15.4 Zigbee
• Applications: Home/Building Automation, Industrial Control and Monitoring
• Power - Output: 3dBm
• Sensitivity: -97dBm
• Voltage - Supply: 2 V ~ 3.6 V
• Current - Receiving: 35.5mA
• Current - Transmitting: 33mA
• Data Interface: PCB, Surface Mount
• Memory Size: 128kB Flash, 5kB SRAM
• Antenna Connector: PCB, Surface Mount
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 48-QFN
• For Use With: 636-1009 - PROGRAMMER USB FLASH EM250/260
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Data Rate - Maximum: -
• Other names: 636-1000-2

EM250
40
120-0082-000I
5.2.1
The SC1 UART controller is enabled with
The UART mode contains the following features:
The following signals can be made available on GPIO pins:
The SC1 UART module obtains its reference baud-rate clock from a programmable baud generator. Baud rates
are set by a clock division ratio from the 24MHz clock:
rate = 24MHz / ( 2 * ( N + (0.5 * F) ) )
The integer portion, N, is written to the
SC1_UARTFRAC
mum allowable setting for
Baud Rate (bps)
300
4800
9600
19200
38400
57600
115200
460800
921600
The UART module supports various frame formats depending upon the number of data bits (
the number of stop bits (
SC1_UART8BIT
ter. In addition, the UART module supports flow control by setting
SC1_UARTRTS
Baud rate (300bps up to 921kbps)
Data bits (7 or 8)
Parity bits (none, odd, or even)
Stop bits (1 or 2)
TXD
RXD
nRTS (optional)
nCTS (optional)
UART Mode
in the
,
register. Table 19 lists the supported baud rates with associated baud rate error. The mini-
SC1_UART2STP
SC1_UARTCFG
SC1_UART2STP
SC1_UARTPER
2500
1250
625
312
208
104
26
13
SC1_UARTPER
,
SC1_UARTPAR
40000
register (see Table 20).
), and the parity (
SC1_UARTPER
SC1_MODE
Table 19. UART Baud Rates
is 8.
, and
set to 1.
SC1_UARTODD
0
0
0
0
1
1
0
0
0
SC1_UARTFRAC
register and the fractional remainder, F, to the
SC1_UARTPAR
SC1_UARTFLOW
are defined within the
plus
SC1_UARTODD
Baud Rate Error (%)
0
0
0
0
0
- 0.08
0.16
0.16
0.16
,
SC1_UARTAUTO
SC1_UARTCFG
). The register bits
SC1_UART8BIT
, and
regis-
),