Digi NS9750 - Manual (Page 310)

S y s t e m c o n f i g u r a t i o n r e g i s t e r s
2 8 6 N S 9 7 5 0 H a r d w a r e R e f e r e n c e
Register bit assignment
Int (Interrupt) Config (Configuration) registers (0–31)
Address: A090 0144 / 0148 / 014C / 0150 / 0154 / 0158 / 015C / 0160
Each Int Config register is 8 bits in length, and programs each interrupt configuration
for each priority level. Table 177 shows how the 32 individual 8-byte registers are
mapped in the eight 32-bit registers. Table 178 shows how the bits are assigned in
each register, using data bits [07:00] as the example.
Bits Access Mnemonic Reset Description
D31:00 R/W IVARV 0x0 Interrupt Vector Address register value
Provides the interrupt vector address for the specified
interrupt level.
Table 176: Interrupt vector address register
Register [31:24] [23:16] [15:08] [07:00]
A090 0144 Int Config 0 Int Config 1 Int Config 2 Int Config 3
A090 0148 Int Config 4 Int Config 5 Int Config 6 Int Config 7
A090 014C Int Config 8 Int Config 9 Int Config 10 Int Config 11
A090 0150 Int Config 12 Int Config 13 Int Config14 Int Config 15
A090 0154 Int Config 16 Int Config 17 Int Config 18 Int Config 19
A090 0158 Int Config 20 Int Config 21 Int Config 22 Int Config 23
A090 015C Int Config 24 Int Config 25 Int Config 26 Int Config 27
A090 0160 Int Config 28 Int Config 29 Int Config 30 Int Config 31
Table 177: Interrupt configuration register address mapping