AT91SAM7S32-AI ATMEL [ATMEL Corporation], AT91SAM7S32-AI Datasheet - Page 320

• Manufacturer Part Number: AT91SAM7S32-AI
• Description: AT91 ARM Thumb-based Microcontrollers
• Manufacturer: ATMEL [ATMEL Corporation]

Loop Mode
Interrupt
320
AT91SAM7S32 Preliminary
Figure 142. Transmit Frame Format in Continuous Mode
Note:
Figure 143. Receive Frame Format in Continuous Mode
Note:
The receiver can be programmed to receive transmissions from the transmitter. This is done
by setting the Loop Mode (LOOP) bit in SSC_RFMR. In this case, RD is connected to TD, RF
is connected to TF and RK is connected to TK.
Most bits in SSC_SR have a corresponding bit in interrupt management registers.
The SSC Controller can be programmed to generate an interrupt when it detects an event.
The Interrupt is controlled by writing SSC_IER (Interrupt Enable Register) and SSC_IDR
(Interrupt Disable Register), which respectively enable and disable the corresponding interrupt
by setting and clearing the corresponding bit in SSC_IMR (Interrupt Mask Register), which
controls the generation of interrupts by asserting the SSC interrupt line connected to the AIC.
1. STTDLY is set to 0. In this example, SSC_THR is loaded twice. FSDEN value has no effect
1. STTDLY is set to 0.
on the transmission. SyncData cannot be output in continuous mode.
TD
Start: 1. TXEMPTY set to 1
RD
2. Write into the SSC_THR
From SSC_THR
Start
DATLEN
Start = Enable Receiver
Data
To SSC_RHR
DATLEN
Data
From SSC_THR
DATLEN
Data
To SSC_RHR
DATLEN
Data
Default
6071A–ATARM–28-Oct-04