Nbd Function Register Map - NEC V850E/IA1 mPD703116 User Manual

32-bit single-chip microcontrollers

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Caution The debug function does not operate under the following conditions.

• • • • During reset period

• • • • Until DMA initialization termination after reset

• • • • Software STOP mode/IDLE mode

• • • • Oscillation stabilization time (during TBC count)

12.2 NBD Function Register Map

Table 12-2 shows a map of the control registers of the NBD function. NBD space does not exist in the internal

space of the CPU but exists independently as NBD space. Because of this, NBD space is space that cannot be read

or written from within the CPU but can only be read or written from the NBD dedicated interface (refer to Figure 12-1).

Chip ID register 0

Chip ID register 1

Chip ID register 2

User event address setting register

User event condition setting register

Caution Since the V850E/IA1 NBD uses DMA that is on-chip in the V850E1 CPU core, settings for DMA are

initialized after reset.

CHAPTER 12 NBD FUNCTION ( µ µ µ µ PD70F3116)

Figure 12-1. Image of NBD Space

NBD : Non Break Debug

Table 12-2. NBD Space Map

User's Manual U14492EJ3V0UD

NBD dedicated

interface (7 ways)

EVTU_A0 to EVTU_A7

EVTU_A8 to EVTU_A15

EVTU_A16 to EVTU_A23

EVTU_A24 to EVTU_A27