EP9301-CQ Cirrus Logic Inc, EP9301-CQ Datasheet - Page 729

• Manufacturer Part Number: EP9301-CQ
• Description: IC ARM920T MCU 166MHZ 208-LQFP
• Manufacturer: Cirrus Logic Inc
• Series: EP9r

Specifications of EP9301-CQ

• Core Processor: ARM9
• Core Size: 16/32-Bit
• Speed: 166MHz
• Connectivity: EBI/EMI, Ethernet, I²C, IrDA, SPI, UART/USART, USB
• Peripherals: AC'97, DMA, I&sup2:S, LED, MaverickKey, POR, PWM, WDT
• Number Of I /o: 19
• Program Memory Type: ROMless
• Ram Size: 32K x 8
• Voltage - Supply (vcc/vdd): 1.65 V ~ 3.6 V
• Data Converters: A/D 5x12b
• Oscillator Type: External
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 208-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Program Memory Size: -
• Other names: 598-1248

SSPSR
DS785UM1
31
15
Address:
Default:
Definition:
Bit Descriptions:
Note: The user should right-justify data when the SSP is programmed for a data size that is less
30
14
than 16 bits. Unused bits at the top are ignored by transmit logic. The receive logic
automatically right justifies.
29
13
28
12
DATA:
0x808A_000C - Read Only
0x0000_0000
SSPSR is a read-only status register, which contains bits that indicate the
FIFO fill status and the SSP busy status.
RSVD:
BSY:
RFF:
RNE:
TNF:
TFE:
27
11
RSVD
26
10
Copyright 2007 Cirrus Logic
25
9
Transmit / Receive FIFO:
Read - Receive FIFO
Write - Transmit FIFO
Reserved. Unknown During Read.
SSP busy flag (read-only):
0 - SSP is idle.
1 - SSP is currently transmitting and / or receiving a frame
or the transmit FIFO is non-empty.
Receive FIFO full (read-only):
0 - Receive FIFO is not full
1 - Receive FIFO is full
Receive FIFO not empty (read-only):
0 - Receive FIFO is empty.
1 - Receive FIFO is not empty
Transmit FIFO not full (read-only):
0 - Transmit FIFO is full.
1 - Transmit FIFO is not full.
Transmit FIFO empty (read-only):
0 - Transmit FIFO is not empty
1 - Transmit FIFO is empty
24
8
RSVD
23
7
22
6
21
5
BSY
20
4
RFF
19
3
Synchronous Serial Port
EP93xx User’s Guide
RNE
18
2
TNF
17
1
23-17
TFE
16
0
23