Complete finite IO terminal migration

Batch 6 IO Terminal Rank Audit

Scope and result

Scope: only deterministic IO_ terminal ranks 176–210 inclusive (35 terminals).
Sort rule: Pin Number Excel-style row A..AF, then literal numeric suffix ascending.
Outside-scope terminals touched: 0.
Final safe-field mismatches: 0.
Protected Description changes: 0.
Exact failures: none.
Final verification commit: 9a565c60 (executor baseline commit a9a5fea4; concurrency-repair commits 4c66875e, 9a565c60).

Per-field audit counts

Counts below include the original mismatch-only writes plus writes required after concurrent overwrites were observed. Retried counts individual terminal fields rewritten once after a post-write mismatch/overwrite.

Table

Field	Initial mismatches	Attempted writes	Succeeded writes	Retried fields
Terminal Order	22	30	30	8
Pin Type	0	0	0	0
Pin Group	0	4	4	4
Section	0	4	4	4
Pin Orientation	26	33	33	7
Pin Description	10	15	15	5
Total	58	86	86	28

Concurrency overwrite events

Field-level overwrite events detected: 28.
The executor's immediate post/final reads were clean, but an independent exact read found 24 fields overwritten by concurrent active normalization threads. After those retries, 4 newly overwritten fields were observed on two terminals and were each retried once.

First independent verification: 24 overwritten fields

IO_L13P_T2L_N0_GC_QBC_A06_D22_65 / T24: Pin Orientation, Pin Description.
IO_L2N_T0L_N3_FWE_FCS2_B_65 / U22: Pin Orientation.
IO_L1N_T0L_N1_DBC_RS1_65 / V19: Pin Group, Section, Pin Orientation.
IO_L4N_T0U_N7_DBC_AD7N_A25_65 / V22: Pin Group, Section.
IO_L16P_T2U_N6_QBC_AD3P_A00_D16_65 / U26: Pin Group, Section.
IO_L7N_T1L_N1_QBC_AD13N_A19_65 / Y23: Pin Orientation.
IO_L19P_T3L_N0_DBC_AD9P_64 / Y20: Terminal Order, Pin Orientation, Pin Description.
IO_L8P_T1L_N2_AD5P_A16_65 / Y25: Terminal Order, Pin Orientation, Pin Description.
IO_L12N_T1U_N11_GC_A09_D25_65 / W24: Pin Orientation.
IO_L23P_T3U_N8_64 / Y17: Terminal Order.
IO_L8N_T1L_N3_AD5N_A17_65 / Y26: Terminal Order.
IO_L10N_AD2N_84 / W15: Terminal Order.
IO_L14N_T2L_N3_GC_A05_D21_65 / U25: Pin Group, Section.
IO_L19N_T3L_N1_DBC_AD9N_64 / Y21: Terminal Order.

Second verification: 4 newly overwritten fields

IO_L2N_T0L_N3_FWE_FCS2_B_65 / U22: Terminal Order observed 438 instead of 181; Pin Description absent instead of User-configurable bidirectional I/O.
IO_L1N_T0L_N1_DBC_RS1_65 / V19: Terminal Order observed 461 instead of 185; Pin Description absent instead of User-configurable bidirectional I/O.

Both terminals were rewritten once for those newly mismatching fields and directly re-read correct.

Protected Description verification

Description was excluded from every mutation payload.
Protected Description changes: 0.
No Description property was removed, repaired, normalized, or populated.

Exact failures

None. All attempted writes returned success and all target safe fields were correct on final direct verification.

Exact rank mapping

Table

Rank	Pin Number	Terminal designator
176	T24	`IO_L13P_T2L_N0_GC_QBC_A06_D22_65`
177	T25	`IO_L14P_T2L_N2_GC_A04_D20_65`
178	U19	`IO_L1P_T0L_N0_DBC_RS0_65`
179	U20	`IO_L3N_T0L_N5_AD15N_A27_65`
180	U21	`IO_L2P_T0L_N2_FOE_B_65`
181	U22	`IO_L2N_T0L_N3_FWE_FCS2_B_65`
182	U24	`IO_L13N_T2L_N1_GC_QBC_A07_D23_65`
183	U25	`IO_L14N_T2L_N3_GC_A05_D21_65`
184	U26	`IO_L16P_T2U_N6_QBC_AD3P_A00_D16_65`
185	V19	`IO_L1N_T0L_N1_DBC_RS1_65`
186	V21	`IO_L4P_T0U_N6_DBC_AD7P_A24_65`
187	V22	`IO_L4N_T0U_N7_DBC_AD7N_A25_65`
188	V23	`IO_L11P_T1U_N8_GC_A10_D26_65`
189	V24	`IO_L12P_T1U_N10_GC_A08_D24_65`
190	V26	`IO_L16N_T2U_N7_QBC_AD3N_A01_D17_65`
191	W13	`IO_L12N_AD0N_84`
192	W14	`IO_L10P_AD2P_84`
193	W15	`IO_L10N_AD2N_84`
194	W16	`IO_L9P_AD3P_84`
195	W21	`IO_T0U_N12_VRP_A28_65`
196	W23	`IO_L11N_T1U_N9_GC_A11_D27_65`
197	W24	`IO_L12N_T1U_N11_GC_A09_D25_65`
198	W25	`IO_L10P_T1U_N6_QBC_AD4P_A12_D28_65`
199	W26	`IO_L10N_T1U_N7_QBC_AD4N_A13_D29_65`
200	Y13	`IO_L11P_AD1P_84`
201	Y15	`IO_L7P_HDGC_AD5P_84`
202	Y16	`IO_L9N_AD3N_84`
203	Y17	`IO_L23P_T3U_N8_64`
204	Y18	`IO_L24P_T3U_N10_64`
205	Y20	`IO_L19P_T3L_N0_DBC_AD9P_64`
206	Y21	`IO_L19N_T3L_N1_DBC_AD9N_64`
207	Y22	`IO_L7P_T1L_N0_QBC_AD13P_A18_65`
208	Y23	`IO_L7N_T1L_N1_QBC_AD13N_A19_65`
209	Y25	`IO_L8P_T1L_N2_AD5P_A16_65`
210	Y26	`IO_L8N_T1L_N3_AD5N_A17_65`

Final desired state verified

All 35 terminals now have:

Terminal Order equal to rank 176–210.
Pin Type Bi-Directional.
Pin Group User I/O.
Section User I/O.
Pin Orientation Right (all target rows are T–Y, within H–AF).
Pin Description User-configurable bidirectional I/O.

Scope and result
Per-field audit counts
Concurrency overwrite events
First independent verification: 24 overwritten fields
Second verification: 4 newly overwritten fields
Protected Description verification
Exact failures
Exact rank mapping
Final desired state verified