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Functional Description
55
SWRU543–January 2019
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Cortex
®
-M4 Processor
2.2.2 Register Description
2.2.2.1 Register Map
Figure 2-2 shows the Cortex
®
-M4 register set. Table 2-2 lists the core registers. The core registers are not
memory-mapped and are accessed by register name, so the base address is n/a (not applicable) and
there is no offset.
Figure 2-3. Cortex
®
-M4 Register Set
Table 2-2. Processor Register Map
Offset Name Type Reset Description
– R0 R/W – Cortex General-Purpose register 0
– R1 R/W – Cortex General-Purpose register 1
– R2 R/W – Cortex General-Purpose register 2
– R3 R/W – Cortex General-Purpose register 3
– R4 R/W – Cortex General-Purpose register 4
– R5 R/W – Cortex General-Purpose register 5
– R6 R/W – Cortex General-Purpose register 6
– R7 R/W – Cortex General-Purpose register 7
– R8 R/W – Cortex General-Purpose register 8
– R9 R/W – Cortex General-Purpose register 9
– R10 R/W – Cortex General-Purpose register 10
– R11 R/W – Cortex General-Purpose register 11
– R12 R/W – Cortex General-Purpose register 12
– SP R/W – Stack pointer