M052LAN Nuvoton Technology Corporation of America, M052LAN Datasheet - Page 335

• 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: -

6.12.4 Operation Procedure
6.12.4.1 EBI Area and Address Hit
6.12.4.2 EBI Data Width Connection
NuMicro M051
NuMicro M051
total memory space is 128Kbyte. When system request address hit EBI’s memory space, the
corresponding EBI chip select signal is assert and EBI state machine operates.
For an 8-bit device (64Kbyte), EBI mapped this 64Kbyte device to 0x6000_0000 ~ 0x6000_FFFF
and 0x6001_0000 ~ 0x6001_FFFF simultaneously.
NuMicro M051™ series EBI support device whose address bus and data bus are multiplexed. For
the external device with separated address and data bus, the connection to device needs
additional logic to latch the address. In this case, pin ALE is connected to the latch device such as
74HC373. Pin AD is the input of the latch device, and the output of the latch device is connected
to the address of external device. For 16-bit device, the AD [15:0] shared by address and 16-bit
data. For 8-bit device, only AD [7:0] shared by address and 8-bit data, AD [15:8] is dedicated for
address and could be connected to 8-bit device directly.
For 8-bit data width, NuMicro M051™ system address bit [15:0] is used as the device’s address
[15:0]. For 16-bit data width, NuMicro M051™ system address bit [16:1] is used as the device’s
address [15:0] and NuMicro M051™ system address bit [0] is useless.
EBI bit width
16 bit
8 bit
Figure 6.12-2 Connection of 16-bit EBI Data Width with 16-bit Device
™
series EBI mapping address is located at 0x6000_0000 ~ 0x6001_FFFF and the
System address (AHBADR)
™
AHBADR[15:0]
AHBADR[16:1]
Series Technical Reference Manual
- 335 -
Publication Release Date: Sept 14, 2010
EBI address (AD)
AD[15:0]
AD[15:0]
Revision V1.2