NEC V850E/MS1 UPD703100, User Manual

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CHAPTER 1 INTRODUCTION
User’s Manual U12688EJ4V0UM00
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(5) Interrupt controller (INTC)
This controller handles hardware interrupt requests (NMI, INTP100 to INTP103, INTP110 to INTP113,
INTP120 to INTP123, INTP130 to INTP133, INTP140 to INTP143, INTP150 to INTP153) from internal
peripheral I/O and external hardware. Eight levels of interrupt priorities can be specified for these interrupt
requests, and multiplexed servicing control can be performed for interrupt sources.
(6) Clock generator (CG)
This clock generator supplies frequencies that are 5 times the input clock (fxx) (used by the internal PLL) and
1/2 the input clock (when the internal PLL is not used) as an internal system clock (
φ
). As the input clock, an
external oscillator is connected to pins X1 and X2 (only when an internal PLL synthesizer is used) or an
external clock is input from pin X1.
(7) Real-time pulse unit (RPU)
This unit has a 6-channel 16-bit timer/event counter and 2-channel 16-bit interval timer on-chip, and it is
possible to measure pulse widths or frequency and to output a programmable pulse.
(8) Serial interface (SIO)
The serial interface has a total of 4 channels of asynchronous serial interfaces (UART) and synchronous or
clocked serial interfaces (CSI). Two of these channels can be switched between UART and CSI, and the
other two channels are fixed to CSI.
UART transfers data by using the TXD and RXD pins and the CSI transfers data by using the SO, SI, and SCK
pins.
The serial clock source can be selected from dedicated baud rate generator output or internal system clock.
(9) A/D converter (ADC)
This high-speed, high-resolution 10-bit A/D converter includes 8 analog input pins. Conversion uses the
successive approximation method.