EM35X-DEV-UPG-IAR Ember, EM35X-DEV-UPG-IAR Datasheet - Page 96
![IAR EWARM LICENCE FOR EM35X](/photos/28/43/284355/em35x-dev-upg-iar_sml.jpg)
EM35X-DEV-UPG-IAR
Manufacturer Part Number
EM35X-DEV-UPG-IAR
Description
IAR EWARM LICENCE FOR EM35X
Manufacturer
Ember
Type
Licenser
Specifications of EM35X-DEV-UPG-IAR
For Use With/related Products
EM35x
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
636-1028
- Current page: 96 of 245
- Download datasheet (12Mb)
Full TWI frames have to be constructed by software from individual TWI segments. All necessary segment
transitions are shown in Figure 8-2. ACK or NACK generation of a TWI receive frame segment is determined
with the SC_TWIACK bit in the SCx_TWICTRL2 register.
Generation of a 7-bit address is accomplished with one transmit segment. The upper 7 bits of the transmitted
character contain the 7-bit address. The remaining lower bit contains the command type (“read” or “write”).
Generation of a 10-bit address is accomplished with two transmit segments. The upper 5 bits of the first
transmit character must be set to 0x1E. The next 2 bits are for the 2 most significant bits of the 10-bit
address. The remaining lower bit contains the command type (“read” or “write”). The second transmit
segment is for the remaining 8 bits of the 10-bit address.
Transmitted and received characters are accessed through the SCx_DATA register.
To initiate (re)start and stop segments, set the SC_TWISTART or SC_TWISTOP bit in the SCx_TWICTRL1
register, then wait until the bit is clear. Alternatively, the SC_TWICMDFIN bit in the SCx_TWISTAT can be used
for waiting.
To initiate a transmit segment, write the data to the SCx_DATA data register, then set the SC_TWISEND bit in
the SCx_TWICTRL1 register, and finally wait until the bit is clear. Alternatively the SC_TWITXFIN bit in the
SCx_TWISTAT register can be used for waiting.
To initiate a receive segment, set the SC_TWIRECV bit in the SCx_TWICTRL1 register, wait until it is clear, and
then read from the SCx_DATA register. Alternatively, the SC_TWIRXFIN bit in the SCx_TWISTAT register can be
used for waiting. Now the SC_TWIRXNAK bit in the SCx_TWISTAT register indicates if a NACK or ACK was
received from a TWI slave device.
8.5.4
TWI master controller interrupts are generated on the following events:
Bus command (SC_TWISTART/SC_TWISTOP) completed (0 to 1 transition of SC_TWICMDFIN)
Character transmitted and slave device responded with NACK
Interrupts
RECEIVE Segment
STOP Segment
with NACK
Figure 8-2. TWI Segment Transitions
Final
8-21
START Segment
IDLE
NO
TRANSMIT Segment
RECEIVE Segment
received ACK ?
with ACK
YES
EM351 / EM357
120-035X-000G
Related parts for EM35X-DEV-UPG-IAR
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![EM35X-DEV](/photos/14/13/141366/em35x-dev-smallboards_tmb.jpg)
Part Number:
Description:
KIT DEV EM35X ZIGBEE
Manufacturer:
Ember
Datasheet:
![EM35X-DEV-IAR](/photos/14/13/141366/em35x-dev-smallboards_tmb.jpg)
Part Number:
Description:
KIT DEV EM35X IAR EWARM ZIGBEE
Manufacturer:
Ember
Datasheet:
![EMBER ZIGBEE DEV KIT W/PCWH](/photos/14/14/141418/mfg___ember_zigbee_dev_kit_w_pcwh_tmb.jpg)
Part Number:
Description:
KIT DEV EMBER ZIGBEE W/PCWH
Manufacturer:
Custom Computer Services Inc (CCS)
![EM2XX-USB-PROG-R](/photos/9/33/93303/em2xx-usb-prog-r_tmb.jpg)
Part Number:
Description:
PROGRAMMER USB FLASH EM250/260
Manufacturer:
Ember
Datasheet:
![EM260-RTR](/photos/14/19/141902/mfg_em260-rt_series_tmb.jpg)
Part Number:
Description:
IC ZIGBEE SYSTEM-ON-CHIP 40-QFN
Manufacturer:
Ember
Datasheet:
![EM250-RTR](/photos/14/19/141904/636-48-qfn_tmb.jpg)
Part Number:
Description:
IC ZIGBEE SYSTEM-ON-CHIP 48-QFN
Manufacturer:
Ember
Datasheet:
![EM351-RTR](/photos/14/19/141904/636-48-qfn_tmb.jpg)
Part Number:
Description:
IC RF TXRX ZIGBEE 128KB 48QFN
Manufacturer:
Ember
Datasheet:
![EM357-RTR](/photos/14/19/141904/636-48-qfn_tmb.jpg)
Part Number:
Description:
IC RF TXRX ZIGBEE 192KB 48QFN
Manufacturer:
Ember
Datasheet:
![EM2XX-ISA-R](/photos/9/26/92693/em2xx-isa-r_tmb.jpg)
Part Number:
Description:
INSIGHT ADAPTER FOR EM2XX
Manufacturer:
Ember
Datasheet:
![EM250-EK-R](/photos/14/1/140183/mfg_em250-ek_tmb.jpg)
Part Number:
Description:
KIT EVAL EM250 RF TEST
Manufacturer:
Ember
Datasheet:
![ISA3](/photos/14/2/140217/isa3_tmb.jpg)
Part Number:
Description:
INSIGHT ADAPTER 3 FOR EM35X
Manufacturer:
Ember
Datasheet:
![EM250-RCM-R](/photos/14/8/140869/em250-rcm-r_tmb.jpg)
Part Number:
Description:
EM250 RCM BOARD
Manufacturer:
Ember
Datasheet:
![EM35X-BBRD](/photos/14/8/140871/em35x-bbrd_tmb.jpg)
Part Number:
Description:
EM35X BREAKOUT BOARD
Manufacturer:
Ember
Datasheet:
![EM260-RCM-USART-R](/photos/14/9/140937/em260-rcm-usart-r_tmb.jpg)
Part Number:
Description:
EM260 RCM BOARD
Manufacturer:
Ember
Datasheet:
![EM250-BBRD-R](/photos/14/9/140971/em250-bbrd-r_tmb.jpg)
Part Number:
Description:
EM250 BREAKOUT BOARD
Manufacturer:
Ember
Datasheet: