地平线—征程2（Journey 2-J2）芯片详解（10）

地平线—征程2（Journey 2-J2）芯片详解（10）—中断映射

写在前面

本系列文章主要讲解地平线征程2（Journey 2-J2）芯片的相关知识，希望能帮助更多的同学认识和了解征程2（Journey 2-J2）芯片。

若有相关问题，欢迎评论沟通，共同进步。(*^▽^*)

错过其他章节的同学可以电梯直达目录↓↓↓

地平线—征程2（Journey 2-J2）芯片详解——目录-CSDN博客

3. 系统架构

本章主要从时钟结构、复位结构、电源管理和电源模式以及中断映射四个方面描述系统架构。

下表列举了IRQ编号和软件生成中断源（Software Generated Interrupt-SGI）的详细映射，如下表所示：

下表列举了IRQ编号和专用外设中断源（Private Peripheral Interrupt-PPI）的详细映射，如下表所示：

IRQ ID	Interrupt Source	Description
25	NA	Virtual Maintenance IRQ, not used in the chip
26	CORE[n].nCNTHPIRQ	Hypervisor Physical Timer IRQ, low active
27	CORE[n].nCNTVIRQ	Virtual Timer IRQ, low active
28	NA	Legacy FIQ, not used in the chip
29	CORE[n].nCNTPSIRQ	Secure Physical Timer IRQ, low active
30	CORE[n].nCNTPNSIRQ	Non-Secure Physical Timer IRQ, low active
31	NA	Legacy IRQ, not used in the chip

下表列举了IRQ编号和共享外设中断源（Shared Peripheral Interrupt-SPI）的详细映射，如下表所示：

IRQ ID	Interrupt Source	Description
32	CORE[0].CTIIRQ	Edge triggered, rising edge active
33	CORE[1].CTIIRQ	/
34	CORE[0].COMMIRQ	High active (The original CPU output is low active, and is inverted when connected for keeping consistent with SPI.)
35	CORE[1].COMMIRQ
36	CORE[0].PMUIRQ
37	CORE[1].PMUIRQ
38	CPU.EXTERRIRQ
39	timer0_irq0	High active
40	timer0_irq1	High active
41	timer0_irq2	High active
42	timer1_irq0	High active
43	timer1_irq1	High active
44	timer1_irq2	High active
45	timer2_irq0	High active
46	timer2_irq1	High active
47	timer2_irq2	High active
48	bifspi_irq	High active
49	bifsd_irq	High active
50	dmac_irq	High active
51	qspi_irq	High active
52	Reserved	High active
53	ddrc_irq	High active
54	ddrphy_irq	High active
55	uart0_irq	High active
56	uart1_irq	High active
57	uart2_irq	High active
58	uart3_irq	High active
59	spi0_irq	High active
60	spi1_irq	High active
61	spi2_irq	High active
62	i2s0_irq	High active
63	i2s1_irq	High active
64	i2c0_irq	High active
65	i2c1_irq	High active
66	i2c2_irq	High active
67	i2c3_irq	High active
68	pwm0_irq	High active
69	pwm1_irq	High active
70	pwm2_irq	High active
71	sd0_irq	High active
72	sd1_irq	High active
73	eth0_perch_rx_irq	High active
74	eth0_perch_tx_irq	High active
75	eth0_irq	High active
76	rtc_irq	High active
77	padc_irq	High active
78	cnn0_irq	High active
79	cnn1_irq	High active
80	mipi_host_irq	High active
81	mipi_dev_irq	High active
82	ips_irq	High active
83	iar_irq	High active
84	perf_monitor_irq	High active
85	cpu_tsensor_irq	High active
86	apb_timeout_irq	High active
87~95	Reserved	/