I2C Registers: Difference between revisions

Line 495:

|-

| 0x30

- ~~0x37~~

- 0x36

| ds

| rw

Line 506:

byte 5: months

byte 6: years

byte 7: leap year counter / "watch error correction" register (unused)

|-

| 0x37

| s

| rw

| RTC time byte 7: leap year counter / "watch error correction" register (unused in code)

|-

| 0x38

Line 651:

Line 655:

|-

| 0x60

| ds~~(1)~~

| ds

| ro

| rw

~~first byte is wo~~

| Looping queue register

Writing to first byte resets the queue position to the nth element

Line 662:

Line 665:

| rw

| Writing to this register pushes values on top of register 0x60's stack. Reading from this register doesn't advance the stack.

The first byte is used to store flags for managing FIRM/NS state - bit0 = "WirelessDisabled", bit1 = "SoftwareClosed", bit2 = "PowerOffInitiated", bit4 = "LegacyJumpProhibited". This register survives power-off, but ~~does not seem to be saved to non-volatile storage (does not survive~~ battery pulls). This register doesn't seem to actually control MCU behaviour by itself, it just seems to be used for storing arbitrary data.

The first byte is used to store flags for managing FIRM/NS state - bit0 = "WirelessDisabled", bit1 = "SoftwareClosed", bit2 = "PowerOffInitiated", bit4 = "LegacyJumpProhibited". This register survives a power-off, but it resides in RAM, so its contents get lost on battery pulls. This register doesn't seem to actually control MCU behaviour by itself, it just seems to be used for storing arbitrary data.

|-

| 0x62 - 0x7E

@@ Line 495: / Line 495: @@
 |-
 | 0x30
-- 0x37
+- 0x36
 | ds
 | rw
@@ Line 506: / Line 506: @@
    byte 5: months
    byte 6: years
-  byte 7: leap year counter / "watch error correction" register (unused)
+|-
+| 0x37
+| s
+| rw
+| RTC time byte 7: leap year counter / "watch error correction" register (unused in code)
 |-
 | 0x38
@@ Line 651: / Line 655: @@
 |-
 | 0x60
-| ds(1)
+| ds
-| ro
+| rw
-first byte is wo
 | Looping queue register
 Writing to first byte resets the queue position to the nth element
@@ Line 662: / Line 665: @@
 | rw
 | Writing to this register pushes values on top of register 0x60's stack. Reading from this register doesn't advance the stack.
-The first byte is used to store flags for managing FIRM/NS state - bit0 = "WirelessDisabled", bit1 = "SoftwareClosed", bit2 = "PowerOffInitiated", bit4 = "LegacyJumpProhibited". This register survives power-off, but does not seem to be saved to non-volatile storage (does not survive battery pulls). This register doesn't seem to actually control MCU behaviour by itself, it just seems to be used for storing arbitrary data.
+The first byte is used to store flags for managing FIRM/NS state - bit0 = "WirelessDisabled", bit1 = "SoftwareClosed", bit2 = "PowerOffInitiated", bit4 = "LegacyJumpProhibited". This register survives a power-off, but it resides in RAM, so its contents get lost on battery pulls. This register doesn't seem to actually control MCU behaviour by itself, it just seems to be used for storing arbitrary data.
 |-
 | 0x62 - 0x7E