EP9301-CQZ Cirrus Logic Inc, EP9301-CQZ Datasheet - Page 728

• Manufacturer Part Number: EP9301-CQZ
• Description: IC ARM9 SOC PROCESSOR 208LQFP
• Manufacturer: Cirrus Logic Inc
• Series: EP9r

Specifications of EP9301-CQZ

• Core Size: 16/32-Bit
• Peripherals: AC'97, DMA, I&sup2:S, LED, MaverickKey, POR, PWM, WDT
• Core Processor: ARM9
• Speed: 166MHz
• Connectivity: EBI/EMI, Ethernet, I²C, IrDA, SPI, UART/USART, USB
• 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-TQFP, 208-VQFP
• Controller Family/series: (ARM9)
• No. Of I/o's: 19
• Ram Memory Size: 16MB
• Cpu Speed: 166MHz
• No. Of Timers: 4
• Digital Ic Case Style: TQFP
• Embedded Interface Type: SPI
• Rohs Compliant: Yes
• Processor Series: EP93xx
• Core: ARM920T
• Data Bus Width: 32 bit
• 3rd Party Development Tools: MDK-ARM, RL-ARM, ULINK2
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Lead Free Status / Rohs Status: Details
• Other names: 598-1136

23
SSPDR
23-16
Synchronous Serial Port
EP93xx User’s Guide
31
15
Address:
Default:
Definition:
Bit Descriptions:
30
14
29
13
28
12
RIE:
0x808A_0008 - Read/Write
0x0000_0000
SSPDR is the data register and is 16-bits wide. When SSPDR is read, the
entry in the receive FIFO (pointed to by the current FIFO read pointer) is
accessed. As data values are removed by the SSPs receive logic from the
incoming data frame, they are placed into the entry in the receive FIFO
(pointed to by the current FIFO write pointer).
When SSPDR is written, the entry in the transmit FIFO (pointed to by the write
pointer), is written. Data values are removed from the transmit FIFO one value
at a time by the transmit logic. It is loaded into the transmit serial shifter, then
serially shifted out onto the SSPTXD pin at the programmed bit rate.
When a data size of less than 16 bits is selected, the user must right-justify
data written to the transmit FIFO. The transmit logic ignores the unused bits.
Received data less than 16 bits is automatically right justified in the receive
buffer.
When the SSP is programmed for National Semiconductor Microwire frame
format, the default size for transmit data is eight bits (the most significant byte
is ignored). The receive data size is controlled by the programmer. The
transmit FIFO and the receive FIFO are not cleared even when SSE is set to
zero. This allows the software to fill the transmit FIFO before enabling the
SSP.
RSVD:
27
11
26
10
Copyright 2007 Cirrus Logic
25
9
Receive FIFO interrupt enable:
0 - Receive FIFO half-full or more condition does not
generate the SSPRXINTR interrupt.
1 - Receive FIFO half-full or more condition generates the
SSPRXINTR interrupt.
Reserved. Unknown During Read.
24
8
RSVD
DATA
23
7
22
6
21
5
20
4
19
3
18
2
17
1
DS785UM1
16
0