diff --git a/libnfc/nfc.c b/libnfc/nfc.c
index 94523fb..985be4b 100644
--- a/libnfc/nfc.c
+++ b/libnfc/nfc.c
@@ -561,7 +561,9 @@ nfc_initiator_transceive_bits (nfc_device_t * pnd, const byte_t * pbtTx, const s
  * - Overall communication with the host is heavier and slower.
  *
  * Timer control:
- * By default timer can count up to 65535 cycles, so about 4.8ms, with a precision of about 73ns.
+ * By default timer configuration tries to maximize the precision, which also limits the maximum
+ * cycles count before saturation/timeout.
+ * E.g. with PN53x it can count up to 65535 cycles, so about 4.8ms, with a precision of about 73ns.
  * - If you're ok with the defaults, set *cycles = 0 before calling this function.
  * - If you need to count more cycles, set *cycles to the maximum you expect but don't forget
  *   you'll loose in precision and it'll take more time before timeout, so don't abuse!
@@ -586,7 +588,9 @@ nfc_initiator_transceive_bytes_timed (nfc_device_t * pnd, const byte_t * pbtTx,
  * - Overall communication with the host is heavier and slower.
  *
  * Timer control:
- * By default timer can count up to 65535 cycles, so about 4.8ms, with a precision of about 73ns.
+ * By default timer configuration tries to maximize the precision, which also limits the maximum
+ * cycles count before saturation/timeout.
+ * E.g. with PN53x it can count up to 65535 cycles, so about 4.8ms, with a precision of about 73ns.
  * - If you're ok with the defaults, set *cycles = 0 before calling this function.
  * - If you need to count more cycles, set *cycles to the maximum you expect but don't forget
  *   you'll loose in precision and it'll take more time before timeout, so don't abuse!