SPVA044 Application note

SPVA044A June 2026 – June 2026 AM2432 , AM2754-Q1 , AM625 , AM62A7 , AM62D-Q1 , AM62L , AM62P , AM6442

Theoretical throughput for DAC Reads: 240 MiBps

(Serial NAND OSPI Flash W35N01JWTBAG supports a maximum clock frequency of 166 MHz (166 MiBps) and 120 MHz DDR (240 MiBps), refer to the datasheet)

Average throughput observed for DAC Reads: 45.13 MiBps

Table 4-8 1S-8S-8S on R5F Core

Frequency	Divider	Data Size Used	DMA	PHY	Throughput (MiBps)
Frequency	Divider	Data Size Used	DMA	PHY	DAC Writes	DAC Reads	DAC Reads with failed OTP Validation	Erase
166MHz	8	1KiB	No	No	1.23	1.75	N/A	0.19
			No	Yes	1.58	4.51	0.14	0.19
			Yes	No	2.94	8.98	N/A	0.19
			Yes	Yes	0.18	14.03	0.15	0.19

		10KiB	No	No	1.71	1.85	N/A	1.85
			No	Yes	2.43	5.47	1.17	1.85
			Yes	No	7.16	14.91	N/A	1.85
			Yes	Yes	10.41	39.11	1.43	1.85

		256KiB	No	No	1.74	1.85	N/A	47.42
			No	Yes	2.49	5.34	4.68	47.42
			Yes	No	8.14	15.68	N/A	47.42
			Yes	Yes	12.68	44.96	20.57	47.42

		512KiB	No	No	1.72	1.85	N/A	75.16
			No	Yes	2.43	5.34	5.00	75.16
			Yes	No	7.69	15.70	N/A	75.16
			Yes	Yes	11.60	44.98	28.24	75.16

		1MiB	No	No	1.71	1.85	N/A	103.36
			No	Yes	2.42	5.34	5.16	103.36
			Yes	No	7.43	15.66	N/A	103.36
			Yes	Yes	11.03	45.24	34.86	103.36

		5MiB	No	No	1.69	2.51	N/A	154.93
			No	Yes	2.39	5.89	5.84	154.93
			Yes	No	7.26	15.81	N/A	154.93
			Yes	Yes	10.65	45.24	42.7	154.93

		10MiB	No	No	1.70	2.52	N/A	170.00
			No	Yes	2.39	5.89	5.87	170.00
			Yes	No	7.21	15.80	N/A	170.00
			Yes	Yes	10.36	45.24	43.93	170.00

Table 4-9 8D-8D-8D on R5F Core

Frequency	Divider	Data Size Used	DMA	Throughput (MiBps)
Frequency	Divider	Data Size Used	DMA	DAC Writes	DAC Reads	Erase
200 MHz	8	1KiB	No	1.30	3.55	0.85
		1KiB	Yes	2.82	12.25	0.85

		10KiB	No	1.94	4.05	7.42
		10KiB	Yes	7.80	25.70	7.42

		256KiB	No	1.97	3.91	179.7
		256KiB	Yes	9.17	28.55	179.7

		512KiB	No	1.97	3.91	180.42
		512KiB	Yes	9.17	28.57	180.42

		1MiB	No	1.97	3.92	180.57
		1MiB	Yes	9.17	28.57	180.57

		5MiB	No	1.98	3.91	181.53
		5MiB	Yes	9.18	28.57	181.53

		10MiB	No	1.98	3.92	179.67
		10MiB	Yes	9.158	28.59	179.67

Theoretical throughput for DAC Reads: 240 MiBps

(Serial NAND OSPI Flash W35N01JWTBAG supports a maximum clock frequency of 166MHz (166MiBps) and 120MHz DDR (240MiBps), see the datasheet)

Average throughput observed for DAC Reads: 49.91 MiBps

Table 4-10 1S-8S-8S on A53 Core

Frequency	Divider	Data Size Used	DMA	PHY	Throughput (MiBps)
Frequency	Divider	Data Size Used	DMA	PHY	DAC Writes	DAC Reads	DAC Reads with failed OTP Validation	Erase
166MHz	8	1KiB	No	No	1.28	0.65	N/A	1.02
			No	Yes	1.54	1.77	0.16	1.02
			Yes	No	2.68	9.64	N/A	1.02
			Yes	Yes	3.03	15.85	0.18	1.02

		10KiB	No	No	1.85	0.67	N/A	10.18
			No	Yes	2.44	1.88	0.92	10.18
			Yes	No	6.54	15.48	N/A	10.18
			Yes	Yes	9.18	43.39	1.72	10.18

		256KiB	No	No	1.90	0.67	N/A	181.70
			No	Yes	2.54	1.89	1.82	181.70
			Yes	No	7.29	16.18	N/A	181.70
			Yes	Yes	10.83	49.72	23.82	181.70

		512KiB	No	No	1.91	0.67	N/A	182.36
			No	Yes	2.55	1.89	0.93	182.36
			Yes	No	7.33	16.20	N/A	182.36
			Yes	Yes	10.87	49.87	32.3	182.36

		1MiB	No	No	1.91	0.67	N/A	182.80
			No	Yes	2.54	1.89	1.87	182.80
			Yes	No	7.32	16.20	N/A	182.80
			Yes	Yes	10.89	49.93	39.22	182.80

		5MiB	No	No	1.91	0.67	N/A	182.3
			No	Yes	2.54	1.89	1.89	182.3
			Yes	No	7.33	16.21	N/A	182.3
			Yes	Yes	10.94	50.00	47.4	182.3

		10MiB	No	No	1.91	0.67	N/A	183.4
			No	Yes	2.54	1.89	47.4	183.4
			Yes	No	7.35	16.21	N/A	183.4
			Yes	Yes	10.98	50.02	48.69	183.4

Table 4-11 8D-8D-8D on A53 Core

Frequency	Divider	Data Size Used	DMA	Throughput (MiBps)
Frequency	Divider	Data Size Used	DMA	DAC Writes	DAC Reads	Erase
200 MHz	8	1KiB	No	1.56	1.13	1.02
		1KiB	Yes	2.96	13.69	1.02

		10KiB	No	2.46	1.17	87.47
		10KiB	Yes	8.37	27.66	87.47

		256KiB	No	2.57	1.17	181.59
		256KiB	Yes	9.63	30.04	181.59

		512KiB	No	2.57	1.17	182.18
		512KiB	Yes	9.65	30.05	182.18

		1MiB	No	2.56	1.17	182.27
		1MiB	Yes	9.65	30.05	182.27

		5MiB	No	2.56	1.17	182.58
		5MiB	Yes	9.60	30.21	182.58

		10MiB	No	2.55	1.17	182.59
		10MiB	Yes	9.61	30.26	182.59