M052LAN Nuvoton Technology Corporation of America, M052LAN Datasheet - Page 250

• Manufacturer Part Number: M052LAN
• Description: IC MCU 32BIT 8KB FLASH 48LQFP
• Manufacturer: Nuvoton Technology Corporation of America
• Series: NuMicro M051™r

Specifications of M052LAN

• Core Processor: ARM Cortex-M0
• Core Size: 32-Bit
• Speed: 50MHz
• Connectivity: EBI/EMI, I²C, IrDA, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LVD, POR, PWM, WDT
• Number Of I /o: 40
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 2.5 V ~ 5.5 V
• Data Converters: A/D 8x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 48-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

SPI Slave Select Register (SPI_SSR)
Register
SPI_SSR
Bits
[31:6]
[5]
[4]
[3]
31
23
15
7
Reserved
NuMicro M051
Offset
SPI0_BA+ 0x08
Descriptions
Reserved
LTRIG_FLAG
SS_LTRIG
AUTOSS
30
22
14
6
LTRIG_FLA
R/W
R/W
29
21
13
G
5
Reserved
Level Trigger Flag
When the SS_LTRIG bit is set in slave mode, this bit can be read to indicate the
received bit number is met the requirement or not.
1 = The transaction number and the transferred bit length met the specified
requirements which defined in TX_NUM and TX_BIT_LEN.
0 = The transaction number or the transferred bit length of one transaction does
not meet the specified requirements.
Note: This bit is READ only
Slave Select Level Trigger (Slave only)
0 = The input slave select signal is edge-trigger. This is the default value.
1 = The slave select signal will be level-trigger. It depends on SS_LVL to decide
the signal is active low or active high.
Automatic Slave Select (Master only)
0 = If this bit is cleared, slave select signal is asserted and de-asserted by
setting and clearing SSR[0].
Description
Slave Select Register
™
Series Technical Reference Manual
SS_LTRIG
28
20
12
4
- 250 -
Reserved
Reserved
Reserved
AUTOSS
27
19
11
3
Publication Release Date: Sep 14, 2010
SS_LVL
26
18
10
2
Reserved
25
17
9
1
Reset Value
0x0000_0000
Revision V1.2
SSR
24
16
8
0