NUC120RD1BN Nuvoton Technology Corporation of America, NUC120RD1BN Datasheet - Page 453

• Manufacturer Part Number: NUC120RD1BN
• Description: IC MCU 32BIT 64KB FLASH 64LQFP
• Manufacturer: Nuvoton Technology Corporation of America
• Series: NuMicro™r

Specifications of NUC120RD1BN

• Core Processor: ARM Cortex-M0
• Core Size: 32-Bit
• Speed: 50MHz
• Connectivity: EBI/EMI, I²C, IrDA, SPI, UART/USART, USB
• Peripherals: Brown-out Detect/Reset, DMA, I²S, LVD, POR, PS2, PWM, WDT
• Number Of I /o: 45
• Program Memory Size: 64KB (64K 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: 64-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

5.14 PS2 Device Controller (PS2D)
5.14.1 Overview
5.14.2 Features
PS/2 device controller provides basic timing control for PS/2 communication. All communication
between the device and the host is managed through the CLK and DATA pins. Unlike PS/2
keyboard or mouse device controller, the received/transmit code needs to be translated as
meaningful code by firmware. The device controller generates the CLK signal after receiving a
request to send, but host has ultimate control over communication. DATA sent from the host to
the device is read on the rising edge and DATA sent from device to the host is change after rising
edge. A 16 bytes FIFO is used to reduce CPU intervention. S/W can select 1 to 16 bytes for a
continuous transmission.
Host communication inhibit and request to send detection
Reception frame error detection
Programmable 1 to 16 bytes transmit buffer to reduce CPU intervention
Double buffer for data reception
S/W override bus
NuMicro™ NUC100 Series Technical Reference Manual
- 453 -
Publication Release Date: Oct 22, 2010
Revision V1.06